Total no. of problems= x
No of questions answered correctly= 63
Percentage = 70%
A/q,
70/100*x= 63
x= 63*100/70
x= 90
There were 90 questions in the test.
Hope it helps you.
It costs $2.80 to buy 4 apples. You want to buy 7 apples. How much will that cost?
Answer:
$4.90
Step-by-step explanation:
Answer:
10 dollars
Step-by-step explanation:
4 / 2.80 = 1.42857142857
so that means 1.42857142857 is the cost of one apple.
1.42857142857 x 7 = 10
so your answer is,
it costs $10 for 7 apples.
I Hope this helped!
. What is the value of x
please help
Answer:
9
Step-by-step explanation:
12x + 17x - 14 + 90 + 2x + 5 = 360
31x + 81 = 360
31x = 279
x = 9
In the diagram below, BD AE, BF bisects ZABD, mC = 88° and
mZBFE = 116°. Find mZE.
Can some help me?
Answer:
40
Step-by-step explanation:
[tex]180 - 116 = 64[/tex]
[tex]180 - 64 \times 2 = 52[/tex]
[tex]180 - 52 - 88 = 40[/tex]
Fredrick manages a band and sings lead vocals. The band charges $700 per concert. Fredrick receives $175 of that money, and he shares the rest equally among the other 5 members of the band. How much money does each of the 5 band members receive per concert?
Answer:
105
Step-by-step explanation:
Answer:
$105 for each member per concert
Step-by-step explanation:
700 - 175 = 525
525 divided by 5 = 105
help asap please! will give brainliest
Answer:
x= -3/2 or x=1.
Step-by-step explanation:
First, make the equation into a factorable form by subtracting 2 from each side to get 2x²+x-3=0. Then factor that into (2x+3)(x-1)=0. Then, you would do 2x+3=0, 2x=-3, x= -3/2. After that, do the second equation x-1=0, x=1.
(hope this helps :P)
42 push ups in 3 minutes. Preform unit rate. How many can she do in five minutes?
Answer:
70 pushups in 5 mins.
Step-by-step explanation:
42 ÷ 3 = 14
So you can do 14 pushups in one minute.
14 × 5 = 70
good luck, i hope this helps :)
A shop advertises 15% off it's prices in the sale.
A purse is £4.42 in the sale.
What was the original price?
Answer:
5.20
Step-by-step explanation:
100%-15%=85%
85%->4.42
100%->4.2÷85×100=5.20
plz answer all of them
Answer:
ace
Step-by-step explanation:
Answer:
See attached
Step-by-step explanation:
Solution in the picture
Please help will give Brain!!
Answer:
its 35
Step-by-step explanation:
look at the triangles see how the lines are the same amount? its dilation meaning it is still 35 but a smaller triangle at the process.
3+2=___
4+2=___
8-8=___
Answer:
1)5
2)6
3)0
Step-by-step explanation:i subtracted
Michelle says that the solution to the inequality 2(4y-3) > -22 is y > -3.5.
what was her mistake. What is the solution to the inequality.
Answer:
The solution of the given inequality is y>-2.
Step-by-step explanation:
The given inequality is :
2(4y-3) > -22
Using distributive property on LHS of the above inequality.
8y-6 >-22
Add 6 both sides of the inequality
8y-6+6 >-22+6
8y>-16
y>-2
So, the value of y is more than -2.
Which value will change most when
13 is added to the data set?
0, 6, 4, 5, 3, 3, 2
A mean
B median
C mode
D outlier
Answer:
it's the mean bc mode and median will not change and that outlier is the one that's different but they are all diff
HELP PLS IM not smart it’s due tonight ♀️
Answer:
Option 3
Step-by-step explanation:
SAS Triangle Congruence Theorem
Answer:
option- 3 which is sas theorum
s is inversely proportional to t
When s = 0.5, t = 7
Work out s when t = 0.8
Given:
s is inversely proportional to t.
When s = 0.5, t = 7.
To find:
The value of s when t=0.8.
Solution:
s is inversely proportional to t.
[tex]s\propto \dfrac{1}{t}[/tex]
[tex]s=\dfrac{k}{t}[/tex] ...(i)
Where, k is the constant of proportionality.
Putting s=0.5 and t=7, we get
[tex]0.5=\dfrac{k}{7}[/tex]
[tex]0.5\times 7=k[/tex]
[tex]3.5=k[/tex]
Putting k=3.5 in (i), we get
[tex]s=\dfrac{3.5}{t}[/tex]
This is the equation of proportionality.
Putting t=0.8, we get
[tex]s=\dfrac{3.5}{0.8}[/tex]
[tex]s=4.375 [/tex]
Therefore, the value of s is 4.375 when t=0.8.
Gabriela was solving an equation, but when she checked her answer, she saw solution was incorrect . She knows she made a mistake, but she can’t find it.
Answer:
The distribution at the 2nd line
Step-by-step explanation:
I believe where Gabby went wrong was in her multiplication distribution
12*5=60 not 72
hope this helps!!
The value of y form the given equation is -65/11. Gabriela did mistake in second step while multiplying 12 and 5 and - sign into a bracket.
The given equation is 12(5+2y)=4y-(5-9y).
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation can be solved as follows:
12(5+2y)=4y-(5-9y)
⇒ 60+24y=4y-5+9y
⇒ 60+24y=13y-5
⇒ 24y-13y=-5-60
⇒ 11y=-65
⇒ y=-65/11
Therefore, the value of y form the given equation is -65/11. Gabriela did mistake in second step while multiplying 12 and 5 and - sign into a bracket.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ5
is the point (1,-3) a solution to the system? show all your work
y>x-1
y >-x+2
Answer:
To determine if the point is a solution, substitute the x value into the right side of the inequality and compare the result with the y value of the point.
- x + 2 = - 1 + 2 = 1
Now - 3 < 1
Thus (1, - 3) is not a solution
Step-by-step explanation:
Find the final balance on $130 invested at an annual rate of 9.4% compounded
quarterly for 2 years.
A. $158.44
B. $156.55
C. $154.44
D. $152.22
please hurry it’s for a test:))
Answer:
i remember this hope this helps you ok
Determine if the graph is a function then state the domain and range.
A function is a set of relation that doesn't have repetitive domain. If we want to know if a graph is function or not, we have to do the line test.
Line Test
Draw a vertical line. Make sure that a line passes through a graph.See if a line intercepts a graph more than one point or just only one.Result
If a line intercepts a graph more than one point, it is not a function.
However, if a line only intercepts a graph just one point, it is indeed a function.
The given graph from the question is a function because it passes line test.
Domain and Range
Domain is the set of all x-values, meaning we only focus on x-axis or x-value only.
Range is the set of all y-values. We only focus on y-value or y-axis for Range.
Determine Domain from Graph
We can simply say that the domain is from starting domain or x-coordinate point to end x-coordinate point. For example, if a graph starts at x = -4 and ends at x = 2, we can say that - 4<=x=2.
Determine Range from Graph
Similar to Domain except Range starts from the minimum value or point to the maximum point or value. For example if a graph starts at min point = 6 and max point = 9. We can say that 6<=y<=9.
From the graph, the domain starts from negative infinity to positive infinity. Meaning that x can be any numbers. Hence, the domain is set of all real numbers. For range, the minimum value is 0 and max value is positive infinity. Therefore we write y>=0.
Answer[tex] \begin{cases} x \in \mathbb{R} \\ y \geqslant 0 \end{cases}[/tex]
Domain is set of all real numbers.
Range is greater or equal to 0.
A -foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a angle with a short vertical support.
Complete question :
A 25-foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a 65∘ angle with a short vertical support.
What is the length x of a diagonal support, to the nearest tenth of a foot?
Answer:
13.80 feets
Step-by-step explanation:
Taking either of the triangles formed and attached to the picture, the length of diagonal, x can be obtained using Pythagoras rule :
To obtain x :
Sinθ = opposite / hypotenus
Opposite = 12.5 feets ; hypotenus = x ; θ = 65°
Sin 65 = 12.5 / x
0.9063077 * x = 12.5
x = 12.5 / 0.9063077
x = 13.792225
x = 13.80 feets
The perimeter of triangle ABC is 96. Find the value of x. 4x + 1 2x 3x + 2 perimeter of ABC = 96
Answer:
4.5is answer
Step-by-step explanation:
perimeter of ABC = 96
4x + 1 2x 3x + 2=96
21x=96
x=96/21=4.5
The workers at the help line answers 24 phone calls every 2hours how many phone calls do the workers answer in 8hours
Answer:
the answer is 24 calls
Step-by-step explanation:
set the proportion
24/2=x/8
8×24=8x
192=8x
divide by 8
x=24
A sum yields an interest of Rs. 900 at 15% simple interest per annum in 4 years. Find the sum.
Answer:
15Step-by-step explanation:
P=I/RT = 900/15×4 =900/60 = 15
- 5x + 9y = - 32
-5x - 3y = 4
Answer: look at the picture
Step-by-step explanation: Hope this help :)
Peter goes for a walk.
He walks 15 miles in 6 hours.
Workout Peter's average speed.
Give your answer in miles per hour.
Answer:
2.5 miles per hour
Step-by-step explanation:
Just take 15 decide by 6 if I am not wrong
Answer:
2.5 miles per hour
Step-by-step explanation:
6 divided by 6=1 hour.
15 divided by 6= 2.5
find the length of IR using the special right triangles
Answer:
7
Step-by-step explanation:
This is a 30-60-90 triangle. The side that include the 60 degree angle and the 90 degree symbol side length is half of the hypotenuse. The hypotenuse is 14 so IR is 7.
Evelyn bought 60 tickets for rides at an amusement park. Each ride costs 3 tickets, and Evelyn has been on x rides so far. Select all the expressions that show the number of tickets that Evelyn has left.
Answer:
I believe your answer will be E, A, and C
Step-by-step explanation:
If she has 60 tickets and each ride is 3 tickets but she has been on x rides you would do 3x and subtract that from 60.
Answer:
a,c,e
Step-by-step explanation:
60 is the total number of tickets, so b and d are wrong because you are no adding to the total number of tickets.
Cada bolsa de canicas que vende la Compañía de Canicas Paola contiene 2 canicas azules por cada 3 canicas verdes. Si una bolsa contiene 12 canicas azules, ¿cuántas canicas verdes contiene?
me ayudan por favor
Answer:
a tube contains 3 tennis balls how many tennis balls are there in 32 tubes
Which of the following statements provides the correct freezing and boiling points of water on the Celsius and Fahrenheit temperature scales
37.29 for 2 pairs of jeans. How much for each pair.
Answer:
About $18.65 each
Step-by-step explanation:
Brainliest?!?!?!?
Answer:
$18.645
Step-by-step explanation:
18.645
2|37 .29
2
----------
17.
16.
----------
1.2
1.2
---
9
8
--
10
10
Therefore, 37.29 divided by 2=18.645
y = x + 5 anyone help
Answer:
x=y−5 Hope I helped? :')
Steps!
1. Subtract 55 from both sides.
y−5=x
2. Switch sides.
x=y−5