Answer: TRUE!
Step-by-step explanation: Hope this helps!
Answer: True
Step-by-step explanation:
the mean weight of 100 students in a certain class is 71kg the mean weight of boys is 65kg and that of girls is 75kg what is the number of boys and girls
Answer:
There are 60 girls and 40 boys in the class.
Step-by-step explanation:
Given that the mean weight of 100 students in a certain class is 71kg, while the mean weight of boys is 65kg and that of girls is 75kg, to determine what is the number of boys and girls the following calculation must be performed:
1 x 75 + 0 x 65 + 75
0.9 x 75 + 0.1 x 65 = 74
0.8 x 75 + 0.2 x 65 = 73
0.7 x 75 + 0.3 x 65 = 72
0.6 x 75 + 0.4 x 65 = 71
Thus, there are 60 girls and 40 boys in the class.
Write the common factors of 12 and 16. Identify the common factors and the greatest common factor?
Answer:
In this case, the greatest common factor is 4.
Step-by-step explanation:
NEED HELP PLS
PLE PLS PKS
Answer:
4 busses
Step-by-step explanation:
20*5= 100
30+30+30=90
+ 30= 120
Emma is going to invest $5,300 and leave it in an account for 19 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Emma to end up with $7,700?
Answer: r=2.0%
Step-by-step explanation:
PLEASE HELP ITS URGENT
DONT GUESS
WILL MARK BRAINLIEST
There are 3 rectangles and 2 triangles in the prism
rectangles: (12 × 10) + (9 × 10) + (15 × 10)
triangles: 2 × (1/2 × 9 × 12) = 9 × 12
Add them all up and you get the answer of 468 in²
Evaluate (y - 9) + (3 + x), when y = 15 and x = 5
Answer:
14
Step-by-step explanation:
It says 'Evaluate (y - 9) + (3 + x), when y = 15 and x = 5'.
So we'd put 15 in y's place. It'll look like this (15 - 9).
Then we'd put 5 in x's place. It'll look like this (3 + 5).
You subtract (15 - 9) which equals 6. And you'd add (3 +5) which equals 8. You add 6 + 8 together since those are your answer for the parentheses. Your final should be 14. Hopefully this helped!
brie and lisa wants to find the area of this figure. They agree to separate the figure as shown, but they disagree about what to do next. lisa wants to add the areas of all four shapes in the figure. brie wants to find the sum of the areas of one parallelogram and one triangle and then multiply that sum by 2 who is correct
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
Step-by-step explanation:
Explain answer !
Will give brainlst
To solve a multi-variable problem, you need to isolate single variables. To do this, there are two ways to do it. One way you eliminate one of the variables and the other you substitute.
In this example, you are being asked to eliminate one of the variables. To do this, you multiply 2x+2y= 12 by 2 and get 4x+4y = 24.
See how now both equations contain a 4y?
Using this you can subtract one equation from the other.
5x+4y=28
- 4x+4y=24
And then you get x=4
To get the other variable, you substitute 4 in for x (in one of the equations) and then solve for y.
2(4) + 2y =12
8+2y= 12
2y=4
y=2
Therefore, x = 4 and y = 2
Wheel I has diameter 24.9 in. Wheel II has diameter 21.0 in. Round the diameter of each wheel to the nearest inch. About how much farther will Wheel I travel in one rotation? Use 3.14 for π.
Answer:
76
Step-by-step explanation:
because the other guy said so
How is this solved?
r2 + 2r = 80
Answer:
8,-10
Step-by-step explanation:
r²+2r=80
r²+2r-80=0
r²+(10-8)r-80=0
r²+10r-8r-80=0
r(r+10)-8(r+10)=0
(r-8)(r+10)=0
either, or,
r-8=0 r+10=0
r=8 r=-10
Does anyone wanna help me?
Answer:
The correct answer is Lorenzo
PLEASE HELP!!!!!
Todd and his friends are painting 5 equal sections of a wall. The wall is 10 feet tall, but its length
is unknown.
Each section will be a different color, so they need to know the area of each section.
10 ft
Total length unknown (x)
1. Write an expression for the total area of the wall. Explain how you came up with your
expression.
Write your answer in the space below.
2. To find the area of each section, what do you need to do to the total area?
Write your answer in the space below.
3. Write an expression for the area of each section of the wall.
Write your answer in the space below.
Area of a parallelogram = b•h
What is the base of a parallelogram with an area of 48 and a height of 6?
Answer:
area of parallelogram =b×h
48cm²=b×6cm
48cm²/6cm=b
8cm=cm
2x-3y=3
find the slope and y intercept
please help me find the value of x
Answer:
67°
Step-by-step explanation:
Corresponding angles are equal in parallel lines.
Here, ∠acb and ∠aed are corresponding angles for lines bc and de
hence ∠aed = ∠acb = 39
in triangle ade,
x + 74 + 39 = 180 (angle sum property of a triangle)
x = 67°
1 Which size Yogli Mogli which yogurt size gives you the best price per ounce?
Small 5 oz. cup for $2.50
Medium 10 oz cup for $3.49
Large 15 oz. cup for $5.99
Super Size 24 oz. cup for $6.59
a. Small
b. Medium
c. Large
d. Super Size
Plz respond quickly for the best answer
2x+3y=5x-y2x+3y=5x−y
If you have the equation, y=2x+10 what’s x if y=24
Answer: x=7
24=2x+10
24-10=14
14=2x
14/2=7
-5t2 + 14t + 3 = 0
ANSWER PLSS!!!!!
Answer:
t=3
Step-by-step explanation:
how do you draw a linear graph equation for y=7
Answer:
wait pag iisipan ko that konting saglit
Answer:
line going left and right on the 7 in the y axis.
What is another name
JLK
LKJ
KLM
LKM
Answer:
The answer is JLK
Step-by-step explanation:
Jdjdjdjdjjdjdjjsjdjsjsjsk
Answer:
the 2nd answer
Step-by-step explanation:
i dont know how to explain it but the 2nd onr
Solve for x. Enter the solutions from least to greatest. Round to two deical places. (x+8)^2-7=0
Answer:
look at the screen shot
Step-by-step explanation:
Answer:
-10.64 is lesser and -5.35 i greater
Step-by-step explanation:
just did it on khan
PLEASE HELP ASAP I WILL MARK BRAINLIEST
Answer:
-24
Step-by-step explanation:
Answer: -24
Step-by-step explanation:
cut a 60 cm ribbon into such that one part is one third of the other half
Answer:
15cm and 45cm
Step-by-step explanation:
If one part is one third of the other, then the long one is three times as long as the short one.
If the short one has length x
x + 3x = 60cm
4x = 60cm
x = 15cm
So short one is 15cm and the long one is 3*15cm = 45cm
Which is the equation in Point-slope form of the line with a slope of 2 and passing thru the point (2,1)
Answer:
y - 1 = 2(x - 2)
General Formulas and Concepts:
Algebra I
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStep-by-step explanation:
Step 1: Define
Slope m = 2
Point (2, 1)
Step 2: Write Equation
Substitute in variables: y - 1 = 2(x - 2)Can you help me on question 25?!
Eight bricks are laid end to end along the edge of a flower bed. Each brick is inches long. How long is the row of bricks, in inches?
Eight bricks are laid end to end along the edge of a flower bed.
Each brick is 11/2 inches long. How long is the row of bricks, in inches?
11/2 inches
A average row of bricks is 7-1/2 inches
11/2 x 7-1/2 = 38
38 inches
Answer:
1.5 times 8 equals 12. The row of bricks is 12 inches long
The interval(s) for which the function shown below is increasing
Answer:
everywhere except between 2 and 5
(between -inf and 2 and between 5 and inf)
Step-by-step explanation:
pls brainlist
A function assigns the value of each element of one set to the other specific element of another set. The interval for which the given function is increasing is (-2,0).
What is a Function?
A function assigns the value of each element of one set to the other specific element of another set.
A function from a set X to a set Y allocates precisely one element of Y to each element of X. The set X is known as the function's domain, while the set Y is known as the function's codomain.
The given function is increasing only when the slope of the function is positive and when the value of x is increased from -2 to 0. Therefore, it can be concluded that the interval for which the given function is increasing is (-2,0).
Learn more about Function here:
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A number equals four less than three times the number.
How do you write this equation
Answer:
n = 4 - 3
Step-by-step explanation: