Three coffees and two muffins cost a total of $7. Two
coffees and four muffins cost $8.
Let x = cost of coffees
Let y = cost of muffins
how do i write this in a system of linear equations?
Step-by-step explanation:
3 coffees + 2 muffins = $7
therefore,
[tex]3x + 2y = 7[/tex]
2 coffees + 4 muffins = $8
therefore,
[tex]2x + 4y = 8[/tex]
Answer:
i think in every coast we're adding two shillings in the first sentence the total was 5 and we paid $7 and in the second sentence the total was 8 dollars meaning we added to shillings.
Step-by-step explanation:
in my school we are taughtthat we shouldn't mix goats with sheeps so we this the same way we can't mix x and y so in my opinion I guess you can say x + y =to that amount of money at the end you paid if it's 8 dollars or 7 dollars. we can say x represents the coffees and y represents the muffins that's how I get it I hope you want to be angry with me. for example 3 + 2 equals to 7 .3 + 2 is 5 so we'll carry five to the other side of equals where we will make it be minus so we'll say 7 - 5 where will get 2
5k + 2 = 6
What is this
Please solve as soon as possible thank you I appreciate it!
help!!!!!!!!!!!!!!!!!!!!!!!!!!!! asap!!!!!!!!!!! 50 pts and brainliest!
Answer:
-5/4
Step-by-step explanation:
Pick two points on the line
(-4,0) and (0,-5)
We can use the slope formula
m = (y2-y1)/(x2-x1)
= ( -5 -0)/(0 - -4)
= (-5-0)/(0+4)
= -5/4
Answer: -5/4
Step-by-step explanation:
Pick two points on the line
(-4,0) and (0,-5)
We can use the slope formula
m = (y2-y1)/(x2-x1)
= ( -5 -0)/(0 - -4)
= (-5-0)/(0+4)
= -5/4
- Chilio
A figure has a perimeter of 40 units and an area of 100 units2 . Which of the following describes the new perimeter and area after the figure is dilated by a scale factor of
A)Perimeter: 20 units; Area: 50 units2
B)Perimeter: 20 units; Area: 25 units2
C)Perimeter: 10 units; Area: 25 units2
D)Perimeter: 80 units; Area: 200 units2
PLEASE HELP MEEE < ILL GIVE 25 POINTS
Answer:
B
Step-by-step explanation:
You didn't write the full question but B is the only one that make since.
QUICK! WHOEVER GIVES CORRECT ANSWER GETS BRAINLIEST
Answer:
15
Step-by-step explanation:
Answer:
15 cookies
Step-by-step explanation:
10 cookies is equivalent to 2 scoops of flour.
You need to find how many cookies they can make with just 1 scoop of flour.
So, to do that, you'd need to do 10/2, which is 5.
10 represents the number of cookies, and 2 represents the scoops of flour. (5 represents the number of cookies you can make with 1 scoop of flour.)
This will work with any certain amount of flour, just use the equation 5 times X, where X is the amount of flour.
In this certain problem, they gave us the scoops of flour.
Replace X with 3.
3 times 5 = 15.
15 cookies.
Warm-Up: Perpendicular Bisector
1.
What is WY? Explain your reasoning.
Answer: WY = 27
Step-by-step explanation:
Due to WX being a Perpendicular Bisector WY = WZ
4x - 5 = 2x + 11
Add 5 to both sides
4x = 2x + 16
Subtract 2x from both sides
2x = 16
Divide by 2
x = 8
So 4x - 5 of x = 8
4*8 = 32 - 5 =27
Answer:
27
Step-by-step explanation:
WY = WZ because XZ = XY
[tex]2x + 11 = 4x - 5\\(2x + 11) - 11 = (4x - 5) -11\\2x = 4x - 16\\-2x = -16\\x = 8\\\\WY = 4x - 5\\WY = 4(8) -5\\WY = 32 - 5\\WY = 27[/tex]
Please help I need help and please explain
Answer:
click c
Step-by-step explanation:
and its right
Find the percent change from the first value to the second.
20;30
The change is (select)
Answer:
increase by 10%.
A ladder that is 18 ft. long is leaning
against the side of a building. If the angle
formed between the ladder and the ground
is 30°, how far is the bottom of the ladder
from the base of the building?
WILL NAME BRAINLIST! The point of a square pyramid is cut off, making each lateral face of the pyramid a trapezoid with the dimensions shown. 1 in 1 in. 3 in. What is ine area of one trapezoidal face of the figure? ___ in. 2
Area= 1/2 (a+b)h
1/2(1in. +3in.)1in.
1/2(4in.)1in.
2in.× 1in.
2in. Therefore the area is 2in.
1/2 x 240 im just too lazy to do it lol
Answer: 120
Step-by-step explanation:
Marcus goes to the park, which is 4 miles away. He walks 512 of the way and then jogs the rest of the way.
How many miles does he walk? Use the number line to help you.
Answer:
516 miles
Step-by-step explanation:
Evaluate the expression 6 + 5 × 32 - 8.
43
11
6
91
Answer:
158
Step-by-step explanation:
All i know is that these answer choices cannot be found in the calculator
Answer:
158.....
PEMDAS
you multiply first 6+160-8
then you add or subtract
158
what is 3x-11 ≥ 7x + 9
Answer:
The answer is x is greater than or equal to -2
Step-by-step explanation:
I just did the math by hand
Answer: x ≤ -5
Step-by-step explanation:
3x - 11 ≥ 7x + 9
3x ≥ 7x + 20
-4x ≥ 20 when dividing negative numbers, change the sign to the opposite.
x ≤ -5
Since 2005, the amount of money spent at restaurants in a certain country has increased at a rate of 5% each year. In 2004, about 5430 billion was spent at
restaurants. If the trend continues, about how much will be spent at restaurants in 2014?
About 5 billion will be spent at restaurants in 2014 if the trend continues
(Round to the nearest whole number as needed.)
Answer:
8845 billion
Step-by-step explanation:
Since exponential growth is given by;
P = a( 1 + r)^t
Where;
P = amount spent after t years
r = exponential growth rate
t = time interval
2004 - 2014 is an interval of 10 years. If 5430 billion was spent in 2004 and the growth rate has been 5% each year, then;
P= 5430 * 10^9(1 + 5/100)^10
P = 8845 * 10^9
P = 8845 billion
I need help on this math problem fast with work shown and answer thx
Answer:
angle 1 = 124
angle 2 = 56
angle 3 = 124
angle 4 = 56
Step-by-step explanation:
This problem is a bit like a puzzle. To make notation easier I'm going to do this:
angle 1 = a
angle 2 = b
angle 3 = c
angle 4 = d
Now, let's start with what we know from the image.
All angles added together form a circle or 360 degrees
a + b + c + d = 360
In the same regard a + d = 180, and b + c = 180
Also,
a = c
and
b = d
It also tells us angle 4 is 25 degrees greater than one fourth of angle 1. Which is written as.
d = 1/4(a) + 25
If we look at all the equations we have, we can see that two of the equations have two of the same variables:
a + d = 180
and
d = 1/4(a) + 25
Using substitution we can take the second equation substitute it for d in the first equation giving us:
a + (1/4(a) + 25) = 180
Now we just solve for a
[tex]\frac{4}{4} a+ \frac{1}{4} a + 25 = 180\\\\\frac{5}{4}a + 25 = 180 \\\\(\frac{5}{4}a + 25) - 25 = (180) -25\\\\\frac{5}{4} a = 155\\\\\frac{5}{4} a * \frac{4}{5} = 155 * \frac{4}{5}\\\\a = 124[/tex]
Therefore a, or angle 1, is 124
Since a = c, then c, or angle 3, is also 124
Since a + d = 180 and a = 124 then
d = 180 -124
d = 56
So, d, or angle 4, is 56
And because b = d then b, or angle 2, is also 56
a = 124
b = 56
c = 124
d = 56
For extra measure, we can check our work by using the first equation
a + b + c + d = 360
124 + 56 + 124 + 56 = 360
SALE
80% OFF!
What is the sale price of a basketball jersey originally priced at $40?
Answer:
20
Step-by-step explanation:
Can someone help me asap please.
4. Find the circumference of a circle with a
diameter of 20 centimeters.
Answer:
circumference = π(diameter) = 3.14(20) =62.8 cm
Step-by-step explanation:
Consider the function f(x)=6x+5
(A) find it’s average rate of change by changing x=1 to x=5
Answer: I really don’t know
Step-by-step explanation: I need help with this as well. I’m really sorry if you were looking for a real answer
Plssss help me out I really need a 87 and don’t get this wrong ❤️
Answer:
73 degrees
Step-by-step explanation:
The total number of all of the angles in a triangle added together should be 180 degrees. You know that one of the angles is 17. The other angle is 90 because it is a right triangle.
90 + 17 = 107
180 - 107 = 73
So, the other angle is 73 degrees. If this is wrong I am so sorry. Hope this helps you, let me know if it is right!
Answer:
73°
Step-by-step explanation:
A right triangle has one right angle and two acute angles.
A right angle is 90° and the question says that one of the angle are 17°.
We need to add both angles together which = 107°.
A triangle internal total angles will always add up to 180°.
So we need to do 180° - 107° to find the missing angle which = 73°.
Also, the question said that the missing angles was acute and 73° is acute.
hope this helps :)
Consider the first three terms of the sequence below.
14000, 12600, 11340
Complete a recursively-defined function to describe this sequence.
f(1) = _____
f(n) = f(n - 1) · ___, for n ≥ 2
The next term in the sequence is ____.
Answer:
f(1) = 14000
f(n) = f(n - 1) · 0.9 , for n ≥ 2
The next term in the sequence is 10206 .
Step-by-step explanation:
First we try to find the type of sequence it is.
Is there a common difference?
12600 - 14000 = -1400
11340 - 12600 = -1260
There is no common difference, so it is not an arithmetic sequence.
12600/14000 = 0.9
11340/12600 = 0.9
There is a common ratio, so this is a geometric sequence.
Each term is 0.9 times the previous term.
The next term is:
11340 * 0.9 = 10206
Answer:
f(1) = 14000
f(n) = f(n - 1) · 0.9 , for n ≥ 2
The next term in the sequence is 10206 .
Find the value of the variable. If the answer is not an integer, leave it in simplest radical form,
15
A. 16^2
B16
C 17
D. 17^2
What is 1/2 ( f - 10 ) when f= 16
Solve the system of equations below.
Need actual help (please hurry)
Jackson has a table with a square top and he wants to buy a circular piece of lace
that will cover the entire top of the table. The top of the table has side lengths of 12
inches, as shown.
12 in
12 in
What is the area, in square inches, of the smallest circular piece of lace Jackson could
Answer:
144
Step-by-step explanation:
the area is 144 im prob wrong
Can someone help me with this question please
Answer:
61
Step-by-step explanation:
all angles that are in a triangle add up to 180
x+80+39=180
x+119=180
x=61
Hope that helps :)
please help im desperate!!!
Answer:
1st one = 4th option
2nd one = 3rd option
Step-by-step explanation: