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3 years ago

10

Simplify the following expression [(3 x 6) + (5 x 2)] ÷ 7

1 answer:

lisabon 2012 [21]3 years ago

3 0

Answer:

4

Step-by-step explanation:

(3)(6)+(5)(2) /7

= 18+(5)(2) /7

=( 18+10) /7

= 28 /7

=4

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Rewrite as a square or a cube: <br> 3 3/8 =_____<br><br> 1 11/25=_____

Nastasia [14]

<span>1)

3 3/8= </span>(3/1) + (3/8)=
     = (3x8)/8 + (3/8)
     =(3x8 +3) / 8              putting both numbers with the same denominator
      =27/8
27 is the same as 3³      3x3x3= 27
8 is the same as 2³        2x2x2= 8
= 3³÷ 2³

2)
1 11/25= (1/1) + (11/25)
= (25/25) + (11/25)     putting both numbers with the same denominator
= (25+11)/25
=36/25
36 is the same as 6²     6x6=36
25 is the same as 5²     5x5=25

6²/5²

4 0

4 years ago

Read 2 more answers

A certain forest covers an area of 2600 km2. Suppose that each year this area decreases by 7.75%. What will the area be like aft

kakasveta [241]

Answer:

After 15 years, the area will be of 775.3 km²

Step-by-step explanation:

The equation for the area of the forest after t years has the following format.

$A(t) = A(0)(1-r)^{t}$

In which A(0) is the initial area and r is the yearly decrease rate.

A certain forest covers an area of 2600 km2.

This means that $A(0) = 2600$

Suppose that each year this area decreases by 7.75%.

This means that $r = 0.0775$

So

$A(t) = 2600(1-0.0775)^{t}$

$A(t) = 2600(0.9225)^{t}$

What will the area be like after 15 years?

This is $A(15)$

$A(t) = 2600(0.9225)^{t}$

$A(15) = 2600(0.9225)^{15} = 775.3$

After 15 years, the area will be of 775.3 km²

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3 years ago

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A ladder is leaning against a building. The distance from the bottom of the ladder to the building is 12 ft shorter than the len

Marysya12 [62]

Answer:

The answer for this question is 2 ft

Step-by-step explanation:

12ft÷6ft=2

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2 years ago

In the expressions, x and y represent positive integers.

denpristay [2]

Answer:

4

Step-by-step explanation:

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3 years ago

Fruit snacks are Becky's favorite treat, but she especially loves the grape ones! A jumbo box

AveGali [126]

Answer:

10 $\frac{7}{15}$ in

Step-by-step explanation:

Use the volume formula for a rectangular prism, V = lwh

Plug in the volume, length, and width, then solve for the height

V = lwh

157 = (5)(3)(h)

157 = 15h

10 $\frac{7}{15}$ = h

So, the box's height is 10 $\frac{7}{15}$ in

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3 years ago