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3 years ago

10

I will mark brainliest!! please answer in simplest form! what is -5/8 divided by -7/2?

2 answers:

Minchanka [31]3 years ago

6 0

Answer:

5 over 28

Step-by-step explanation:

Irina18 [472]3 years ago

3 0

Answer:

5/28

Step-by-step explanation:

-5/8 ÷ -7/2

-5/8 × 2/-7

=5/28

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A cement walkway of uniform width has been built around an in-ground rectangular pool. the area of the walkway is 1344 square fe

Elza [17]

Answer:

6 feet.

Step-by-step explanation:

Dimensions of the Pool =80 feet long by 20 feet wide

Area of the walkway =1344 square feet.

If the width of the walkway=w

Length of the Larger Rectangle =80+2w
Width of the Larger Rectangle =20+2w

Area of the Walkway =Area of the Larger Rectangle - Area of the Pool

$1344=(80+2w)(20+2w)-(80*20)\\1344=80*20+160w+40w+4w^2-80*20\\4w^2+200w=1344\\4w^2+200w-1344=0\\We factorize\\4(w^2+50w-336)=0\\4(w^2-6w+56w-336)=0\\w(w-6)+56(w-6)=0\\(w-6)(w+56)=0\\w-6=0$ or $ w+56=0\\w=6$ ft or $ w=-56$ \\Therefore, the width of the walkway , w=6 feet.$

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3 years ago

Complete the graphic organizer by dragging each expression to the exponent law it illustrates. Assume that x and y are nonzero r

Agata [3.3K]

Answer:

Step-by-step explanation:

i got it correct:)

7 0

3 years ago

Solve for the following equation step by step and justify your steps when using an exponential property.

mel-nik [20]

x = $\frac{5}{7}$

using the ' laws of exponents '

• $a^{m}$ × $a^{n}$ = $a^{( m + n )}$

• $a^{m}$ ÷ $a^{n}$ = $a^{(m - n)}$

• ( $a^{m}$ )^n = $a^{mn}$

$7^{2}$ × $7^{3}$ = $7^{5}$ ÷ $7^{3x}$ = $7^{5 - 3x}$

$7^{4x}$ = $7^{5 - 3x}$

equating the exponents since bases on both sides are 7

4x = 5 - 3x

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4 0

3 years ago

What is the area of polygon ABCDE?

marta [7]

Answer:86

Step-by-step explanation

140-(16+24+5+9) 140-54 = 86

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3 years ago

três amigos levaram figurinhas para trocar na escola.Fernando levou 10 mas em média foram levadas 11 figurinhas por pessoa quant

kicyunya [14]

We are given

Number of person took cards =3

Average number of cards taken = 11 per person

so, we can find total number of cards

Total number of cards= (average number of cards)*(number of persons)

Total number of cards is

$=3\times 11$

$=33$

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so,

Fernando card +other two cards =33

10 +other two cards =33

Other two cards =23..............Answer

6 0

4 years ago