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podryga [215]
3 years ago
11

Please help ASAP! i rlly need help

Mathematics
2 answers:
Troyanec [42]3 years ago
7 0

Answer:

It's either 69 or 70

Step-by-step explanation:

Mamont248 [21]3 years ago
4 0

Answer:

means they all in or in high school

Step-by-step explanation: because 70 inches is the same as 5'10

so they are in high school

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Which is the answer and how did you solve it?
motikmotik
Its pretty simple

9x-7y = 22
x + 3y = -24

(9x-7y = 22)
-9(x + 3y = -24)
= -9x -27y = 216
+ 9x-7y = 22
= -34y = 238
= / -34 = 238/-34
y = -7

now plug -7 in one of the equation
x + 3(-7) = -24
x -21 = -24
+21. +21
x = -3

so answer is x = -3 and y = -7

3 0
3 years ago
Find the value of z in the following equation.<br> z + 3z + 25 = 125
Y_Kistochka [10]

Answer:

25

Step-by-step explanation:

z+3z+25=125

4z=100

z=25

3 0
3 years ago
Read 2 more answers
A salesperson earns $350.25 per week plus 12% of her weekly sales. Which of the following describes the sales necessary for the
Lynna [10]
Let X describes the sales

350.25+0.12x=800.5
Now solve for x
0.12x=800.5-350.25
0.12x=450.25
X=450.25÷0.12
X=3,752.08

the sales necessary for the salesperson to earn at least $800.50 in one week is 3,752.08
5 0
3 years ago
Using the image, find the distance between the points given on the graph.
Yuliya22 [10]

Answer:

3 units

Step-by-step explanation:

using the distance formula

6 0
3 years ago
Read 2 more answers
Find the distance between the points (<br> -<br> 10,12) and (15,12).
Nitella [24]
The distance formula is:

d= \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}

We are given two points in the form (x,y), so plug in the values to the distance formula:

d= \sqrt{(-10-15)^2-(12-12)^2}

Next we can simplify. We know that 12-12 is 0, so we can drop it from the equation, as it will not affect our answer. Also, we know that -10-15 is -25:

d= \sqrt{(-25)^2}

The square and square root cancel each other out leaving us with 25.

The answer is 25.


5 0
3 years ago
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