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Evgen [1.6K]
2 years ago
12

Ten times the sum of three and number is -21. what is the number?

Mathematics
2 answers:
serg [7]2 years ago
4 0

Answer:

7? 7 x -3 21

Step-by-step explanation:

enot [183]2 years ago
3 0
10(x+3) = -21

-51/10

Mark brainliest please
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Rasek [7]

Answer:

A  40

Step-by-step explanation:

We can find angle K

J + K + L = 180  The angles of a triangle add to 180

50 + K + 90 =180

140 +K = 180

Subtract 140 from each side

140-140 + K = 180-140

K = 40

Since the triangles are congruent

J = P

K = N

L = M

We want to find N

K = N = 40

K = N

4 0
3 years ago
In the system of equations below, which variable would it be easiest to solve for?
Maru [420]

Answer:

<h3>     The first: The easiest to solve for is x in the first equation.</h3>

Step-by-step explanation:

To get x from first equation  you just need to subtract 4y from both sides.

The rest of variables needs two operations to get variable - subtracting and then dividing.

7 0
2 years ago
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Hannah went swimming after she woke up. It took Hannah 15 minutes to get ready to go swimming. She swam for 30 minutes and then
saul85 [17]

Find the total minutes:

15 + 30 + 25 + 35 = 105 minutes

This is equal to 1 hour and 45 minutes

Subtract 1 hour and 45 minutes from 9:30

She woke up at 7:45 am

4 0
3 years ago
Josh And ash order 2 whole pizzas to eat.Josh ate 5/8 slices of pizza and ash ate 6/8 slices of pizza.Who much pizza is still le
Elenna [48]

2-5/8-6/8=16/8-5/8-6/8=5/8 pizza slices left

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hope it helps:))

8 0
3 years ago
Which of the following data sets has the mean, median, mode, and range as the same number?
I am Lyosha [343]

Answer:

A.

Step-by-step explanation:

6, 11,14,14,19,20

Adding these 6 numbers we get  84.

84 / 6 = 14 = mean.

Median =  middle number(s) = 14

Mode = number occurring most = 14.

5 0
1 year ago
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