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Mila [183]
2 years ago
10

Please help me 7th grade

Mathematics
1 answer:
Anon25 [30]2 years ago
6 0

Answer:

4(-80) = -320

Step-by-step explanation:

His elevation decreased by 80 each hour. Since he was walking for 4 hours, the equation would be

4(-80) = -320.

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How do you solve this equation 5/2c = 8 1/3
OLga [1]

Answer:

all work is shown and pictured

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3 years ago
Un número entero de tres dígitos es igual a 25 veces la suma de sus dígitos. Si los tres dígitos se invierten, el número que res
Pavlova-9 [17]
La repuesta es 375,porque 3+7+5 es 15,y 15x25 es 375. Tambien el digito de las decenas es uno menos que la suma de los digitos de las centenas y de las unidades.
5 0
3 years ago
What is the mean of 17 20 17 33 22 23
Ad libitum [116K]

Answer:

22

Step-by-step explanation:

Mean basically just means average. To find the mean, add the numbers together and divide them by the number of numbers.

17 + 20 + 17 + 33 + 22 + 23 = 132

After that, divide by 6 since there are 6 numbers

132 ÷ 6 = 22

-------

Have a good day :)

4 0
2 years ago
Devon needs a wood board with an area of 516 square yard to complete a project. If the wood board is 13 yard wide, how long must
nataly862011 [7]

Answer:

L=\frac{15}{16}\ yd

Step-by-step explanation:

<u><em>The correct question is</em></u>

Devon needs a wood board with an area of 5/16 square yard to complete a project. If the wood board is 1/3 yard wide, how long must the board be?

we know that

The area of a rectangle is equal to

A=LW

where

L is the length

W is the width

we have

A=\frac{5}{16}\ yd^2\\\\W=\frac{1}{3}\ yd

substitute

\frac{5}{16}=L(\frac{1}{3})

solve for L

L=\frac{5}{16}(3)

L=\frac{15}{16}\ yd

5 0
3 years ago
A student is solving the system of equations below. In which line is a mistake first made?
AlexFokin [52]

Answer:

line 1

Step-by-step explanation:

because

3x + 2y + z = 11 ➡ z = 11 - 3x - 2y

3x and 2y must change sign when transfer to other sid eof equation

5 0
2 years ago
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