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4 years ago

2x

Mathematics

1 answer:

Dafna11 [192]4 years ago

6 0

Answer:It’s D On USATESTPREP D)Monomial

Step-by-step explanation:

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8(x+2)=56 HELP PLZZ ANYONE Use the Distributive Property to solve the equation.

xenn [34]

Answer:

x = 5

Step-by-step explanation:

1. 8 (x + 2) = 56 Distribute the 8

2. 8x + 16 = 56 Subtract 16 from both sides

3. 8x = 40 Divide both sides by 8

4. x = 5

6 0

3 years ago

Eugenia walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph

kondor19780726 [428]

Let us say distance between Eugenia's home and school is x miles.

Speed of Eugenia when she walked from home to school = 3 mph

Speed of Eugenia when she walked from school to home = 7 mph

Total time taken = 45 minutes or 0.75 hours

We know that the speed distance formula is given by:

$speed=\frac{distance}{time}$

$time=\frac{distance}{speed}$

Time taken by Eugenia when she walked from home to school = x/3 hours

Time taken by Eugenia when she walked from school to home = x/7 hours

Total time taken = x/3+x/7

So forming an equation we have,

$\frac{x}{3}+\frac{x}{7}=0.75$

Taking lcd of 7 and 3 as 21,

$\frac{7x}{21}+\frac{3x}{21}=0.75$

$\frac{10x}{21}=0.75$

10x=15.75

Dividing both sides by 10 , we have

x= 1.575

Answer: So we can say that the distance between Eugenia's house and school is 1.575 miles.

4 0

3 years ago

Simplify 3.3l : 900ml

stich3 [128]

3.3l : 900ml = 3300 ml / 900 ml = 33/9

3 0

4 years ago

(24xy^3-16x^2y^2+32x^2y)/8xy

Ahat [919]

(24xy^3-16x^2y^2+32x^2y)/8xy

(‌24xy^3−16x^2y^2+32x^2y8‌x)(y) =−2x^3y^3+3x^2y^4+4x^3y^2

4 0

3 years ago

Least common denumertor of 11/3 9/10

Alisiya [41]

30 since that’s the lowest number both 3 and 10 can fit in

8 0

3 years ago