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vladimir2022 [97]
3 years ago
15

HELP QUICK! ! ! NEED HELP!

Mathematics
2 answers:
Maslowich3 years ago
8 0

Answer:

276

Step-by-step explanation:

4x10=40x2=80

7x10=70x2=140

7x4=28x2=56

140+80+56=276

hjlf3 years ago
7 0

Answer:

The surface area of the rectangular prism is 276.

Step-by-step explanation:

40 + 70 + 28 + 70 + 28 + 40 = 276

Every term added above represents the area of one side of the prism.

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8x = 12y and 2y + 10 = 22
scoray [572]

Answer:

y=6

Step-by step: subtract 10 from 22 then divide it by 2 to get y.

2y+10=22

          -10

2y=12

12/2=6

y=6

3 0
3 years ago
ben earns a base salary of $400.00 every week with an additional 11% commission on everything he sells. if ben sold $6050.00 wor
RUDIKE [14]
If you would like to know what was his total pay last week, you can calculate this using the following steps:

a base salary ... $400.00
an additional 11% commission on everything Ben sells
11% of $6050.00 = 11% * 6050 = 11/100 * 6050 = $665.5

$400 + $665.5 = $1065.5

Result: His total pay was $1065.5.
4 0
4 years ago
Read 2 more answers
A candy box is made from a piece of cardboard that measures 23 by 13 inches. Squares of equal size will be cut out of each corne
wolverine [178]

Answer:

2.67 inches.

Step-by-step explanation:

Assuming that we represent the size of the squares with the letter y, such that after the squares are being cut from each corner, the rectangular length of the box that is formed can now be ( 23 - 2y), the width to be (13 - 2y) and the height be (x).

The formula for a rectangular box = L × B × W

= (23 -2y)(13-2y) (y)

= (299 - 46y - 26y + 4y²)y

= 299y - 72y² + 4y³

Now for the maximum volume:

dV/dy = 0

This implies that:

299y - 72y² + 4y³ = 299 - 144y + 12y² = 0

By using the quadratic formula; we have :

= \dfrac{-b \pm \sqrt{b^2 -4ac}}{2a}

where;

a = 12; b = -144 and c = 299

= \dfrac{-(-144) \pm \sqrt{(-144)^2 -4(12)(299)}}{2(12)}

= \dfrac{144 \pm \sqrt{20736 -14352}}{24}

= \dfrac{144 \pm \sqrt{6384}}{24}

= \dfrac{144 \pm79.90}{24}

= \dfrac{144 + 79.90}{24} \ \  OR  \ \   \dfrac{144 - 79.90}{24}

= 9.33 \ \  OR  \ \ 2.67

Since the width is 13 inches., it can't be possible for the size of the square to be cut to be 9.33

Thus, the size of the square to be cut out from each corner to obtain the maximum volume is 2.67 inches.

3 0
3 years ago
Round off 2409725 to nearest 10​
Julli [10]

Answer:

Hey!

Step-by-step explanation:

Your answer is 2409725.0

Best of luck ♥

5 0
3 years ago
Read 2 more answers
there are 49 students on the cafeteria 35 girls and 14 boys what is the ratio of girls to boys int he cafeteria A) 2:5 B)1:2 c)5
Delvig [45]

Answer:

5:2

Step-by-step explanation:

35÷7= 5

14÷7=2

You get the ratio by dividing by a common multiple

7 0
3 years ago
Read 2 more answers
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