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2 years ago

Which expression is equivalent to the expression below? Select all that apply.

Mathematics

1 answer:

katen-ka-za [31]2 years ago

3 0

Answer:

2 and 3

Step-by-step explanation:

To simplify this expression, you will need to use the distributive property.

Multiply -2/5 by 15 = - 6, -2/5 by -20d = 8d, and -2/5 by 5c = -2c.

you can switch these around to get -6 + 8d - 2c and -2c + 8d - 6.

Hope this helps :)

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Help plz ?????????????

Lyrx [107]

Answer:

3443

———— = C. 202

Step-by-step explanation:

Step 1 :

3443

Simplify ————

Final result :

3443

———— = 202.52941

Processing ends successfully

plz mark em as brainliest :)

8 0

2 years ago

Solve for the variable x m = -12g + x

mario62 [17]

Answer:

x=m+12g

Step-by-step explanation:

m=-12g+x

making x subject of formula, we have,

x=m+12g

3 0

2 years ago

The front of the stage, side C, is 50 feet long. A 40-foot rope runs along the side of square B. A 30-foot rope runs along the s

Brilliant_brown [7]

Answer:

C=hypotenuse [h]=50 feet

A=[base]=40foot.

B=perpendicular [p]=?

Area =?

we have

By using Pythagoras law

p²+b²=h²

B²=40²=50²

B²=50²-40²

B=√900

B=30feet

we have

Area of triangle =½×A×B=½×30×40=600feet²

the roped off area is 600 square feet.

it is a right angled triangle.

4 0

2 years ago

Read 2 more answers

If a wagon wheel has a diameter of 70cm, how many revolutions would it take to travel 66 METERS?

ddd [48]

Answer:

30 revolutions

Step-by-step explanation:

to calculate the revolution of the wheels in 66 metres we need to get the circumference

circumference = 2πr, r = radius (diameter divided by 2) but from the formula of circumference we ca rewrite it as πd= 3.14 x 70 = 219.8cm

next convert 66 metres to cm

100cm = 1m

x= 66m

cross multiply

x= 66m x100cm/1m= 6600cm

revolutions in 66metres = 6600cm/219.8cm = 30.0272975 ≅30 revolutions

6 0

2 years ago

Jim has only dimes and nickels in his coin bank. He has 37 coins with a total value of $2.65.

guajiro [1.7K]

Answer:

Step-by-step explanation:

Let x represent the number of dimes and y represent the number of nickels. The total number of coins is 37; this gives us the equation

x+y = 37

Each dime is worth ten cents, or 0.10, and each nickel is worth five cents, or 0.05. The total amount of money is given by

0.10x+0.05y = 2.65

This gives us the system

$\left \{ {{x+y=37} \atop {0.10x+0.05y=2.65}} \right.$

To solve this, we will use substitution. We will isolate x in the first equation:

x+y=37

Subtract y from each side:

x+y-y = 37-y

x = 37-y

Substitute this into the second equation:

0.10(37-y)+0.05y = 2.65

Using the distributive property,

0.10(37)-0.10(y)+0.05y = 2.65

3.70-0.10y+0.05y = 2.65

Combining like terms,

3.70-0.05y = 2.65

Subtract 3.70 from each side,

3.70-0.05y-3.70 = 2.65-3.70

-0.05y = -1.05

Divide both sides by -0.05:

-0.05y/-0.05 = -1.05/-0.05

y = 21

There were 21 nickels.

4 0

2 years ago

Read 2 more answers