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Sav [38]
2 years ago
12

Help ill give brainiest, dont guess. first answer gets brainiest

Mathematics
1 answer:
Illusion [34]2 years ago
6 0

Answer:

8. Surface area = 85.5cm^2

9.  Volume = 45.5cm^3

Step-by-step explanation:

8. A=2(wl+hl+hw)=2·(2·6.5+3.5·6.5+3.5·2)=85.5

9. V=whl=2·3.5·6.5=45.5

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What is 10n+2=7n+14
Orlov [11]

Answer:

n = 4

Step-by-step explanation:

Given

10n + 2 = 7n + 14

Collect terms in n on the left side and numbers on the right side

Subtract 7n from both sides

3n + 2 = 14 ( subtract 2 from both sides )

3n = 12 ( divide both sides by 3 )

n = 4

4 0
3 years ago
Read 2 more answers
Which of the following is the graph of the inequality y< -2x + 3?
zaharov [31]

Answer:

look at the photo

Step-by-step explanation:

Since the inequality is already written in y=mx+b, you can easily graph the line. +3 is the y intercept, so one point would be (0,3). -2 resembles the slope, so diagonally to the left, you would go up 2 and across 1. Also, since the sign is "<" you would graph with a dotted line. Then to know which side to shade, I always use the coordinate (0,0). I plug in 0 for both x and y to see if (0,0) satisfies the inequality. In this case it does, so you would shade on the side where (0,0) is located.

3 0
3 years ago
A family buys a refrigerator that costs € 840 paying a 30% cash deposit and the rest in 6 monthly installments, what is the amou
krok68 [10]

Answer:

€98.

Step-by-step explanation:

A 30% deposit is 0.30 * 840

=  €252.

So there is 840 - 252

=  €588 left to pay.

The amount of each monthly instalment

= 588 / 6

=  €98.

8 0
3 years ago
Read 2 more answers
36 (6 - 4x) – 27x = 10x - 31
Colt1911 [192]
The answer is highlighted and I put the work for checking the answer at the bottom

4 0
3 years ago
R is the midpoint of PQ. PR = 6x + 7 and RQ = 3x + 8, find the length of PQ.
Ksivusya [100]

Answer:

PQ = 18

Step-by-step explanation:

If R is the midpoint of PQ, then PR = RQ

⇒ 6x + 7 = 3x + 8

⇒ 3x = 1

⇒ x = 1/3

So PR = 6x + 7 = 6(1/3) + 7 = 9

and RQ = 3x + 8 = 3(1/3) + 8 = 9

⇒ PQ = PR + RQ = 9 + 9 = 18

6 0
2 years ago
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