A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many pennies are in the box

Answers

Answer 1

Answer: We could say that the number of pennies is 2x, nickels are 3x, and dimes are 4x. Adding all of them together, we get 2x+3x+4x=9x. We also know that 9x=1620 because the total amount of coins is 1620. Dividing by 9 on both sides we get x=180.
Pennies equal 2x= 2*180=360

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Which Statement is true? A.All Parallelograms are squares. B.All parallelograms are rhombuses. C.All rectangles are squares. D.All squares are rhombuses.

Help help help help help help help

Answers

The answer is A (or the first one) because the numbers are just switched around but they stay the same.

The first one is equivalent to the Associative Property of Multiplication because a•(b • c) = (a • b) • c.

What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 5.5? A rectangle is shown. The length of the rectangle is labeled as 8 cm, and the width is labeled as 6 cm. Perimeter = 50 cm, area = 155.25 cm2 Perimeter = 50 cm, area = 1,452 cm2 Perimeter = 154 cm, area = 155.25 cm2 Perimeter = 154 cm, area = 1,452 cm2

Answers

The perimeter of the rectangle is by definition:
P = 2W + 2L
Where,
W: width
L: long
We have then:
P = 2 (5.5 * 6) +2 (5.5 * 8)
P = 154 cm

The area of the rectangle is by definition:
A = (W) * (L)
Where,
W: width
L: long
We have then:
A = (5.5 * 6) * (5.5 * 8)
A = 1452 cm ^ 2

Answer:
Perimeter = 154 cm, area = 1,452 cm2

Answer:

the answer is 154 cm, area = 1,452 cm2 I took the test

Step-by-step explanation:

Marco made of rectangular prism using 1/2 m cubes the rectangular prism has a volume of 5 m³ how many cubes did Marco use

Answers

ok so
1 find volume of 1 cube
2. find total volume of rectangular prism

1/2 m cubes
volume=side^3
side=1/2m (I guess since that was what was given)
v=1/2^3=1/8

so
volume of 1 cube times number of cubes=total volume
1/8m^3 times number of cubes=5m^3
multiply both siides by 8/1 m^3 to clea fraction (since 8/1 times 1/8=8/8=1)
number of cubes=40

needs 40 cubes

How to find length of the flower bed, divide the area by the width

Answers

Area = length x width

with a little algebra we can reorganize the equation and solve for length...

A = L x W
A/W = L

So the statement divide the area by the width is TRUE.

As we know,
Area = length × width

Divide width on both sides

Area/width = length × width/ width

Flip the equation
Length = Area/width

Roberto tool a test that contained 25 questions. He received an 88% on the test. how many questions did he answer correctly?

Answers

he got 22/25 questions right because

if you put X as the number of questions he got right out of 25 and equal it to 88 out of 100 you can cross multiply to get X

x/25=88/100
100x=25×88

25×88=2200
100x=2200

divide 100 on both sides
therefore
2200/100= 22

hope this helps

That is corect becaus if you do the math you will get an good answer

On a road trip, Maura drove at a speed of 60 miles per hour for the first two hours.she then increased her speed by 25%.Part A:How fast was Maura driving after she increased her speed?
Part B:If Maura continues to drive at her increased speed, write an equation to find the total distance,d, in miles,that Maura will have travelled for any time,x, in hours, longer than 2 hours.
Part C:Using the equation from Part B, how far would Maura travel in 5 hours?

Answers

The answer for part (a) is 75 miles/hour, for part (b) is 75h = d, and for part (c) is 375 miles.

What is the distance?

Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.

We have:

On a road trip, Maura drove at a speed of 60 miles per hour for the firsttwohours. she then increased her speed by 25%.

Total miles = 60×2 = 120 miles in two hours

= 25% of 60 = 15

= 60 + 15 = 75 miles/hours

The equation:

75h = d (distance = speed×time)

Plug h = 5

75(5) = d

d = 375 miles

Thus, the answer for part (a) is 75 miles/hour, for part (b) is 75h = d, and for part (c) is 375 miles.

Learn more about the distance here:

brainly.com/question/26711747

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So Maura was driving 60 miles per hour for two hours. That's 60x2 which equals 120 miles in the two hours she's been driving. After two hours she increases her speed by 25%. 25% of 60 is 15, so she is now going 75 miles per hour (Part A). If she continues to drive this way, the equation would be 75xh=d. 75 being how fast she's going and h being the number of hours she's gone. If you multiple those two together it will give you the distance she's gone (Part B). If you substitute the 5 hours from Part C the equation would be 75 miles multiplied by 5 hours. 75x5= 375 miles.

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