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alekssr [168]
3 years ago
6

Can someone help me with this question

Mathematics
1 answer:
iragen [17]3 years ago
7 0
Measure of angle A=180- Measure of angle C + Measure of angle B
2x=180-(90+3x)
2x=180-90-3x
+3x. +3x
5x=180-90
5/5x=90/5
x=18
Measure of angle is
A= 2x
A=2(18)
A=36

Measure of angle B =
3x
3(18)
54

Simply, Measure of angle A is 36, Measure of angle B is 54 and measure if angle C is 90
You might be interested in
What is the solution to -3x<9
GaryK [48]
-3x<9. The way to figure this out is to divide by -3 to get x by itself. Remember, when dividing by a negative, you need to flip the inequality sign.
x>-3 is your answer.
I hope this helps!
7 0
3 years ago
Nora and her children went into a grocery store and she bought $11.95 worth of apples and bananas. Each apple cost $1.25 and eac
SIZIF [17.4K]

Answer: apples = 7 and bananas = 8

Step-by-step explanation:

Let x represent the number  of apples and y represent the number of banana,

and it was said that the total apples and bananas altogether is 15 , that is

x + y = 15 ................. equation 1

Also,

1.25x + 0.40y = 11.95 ............. equation 2

Solving the two equations simultaneously ,

From the first equation, x = 15 - y ........... equation 3

substitute equation 3 into equation 2, we have

1.25(15 - y) + 0.40y = 11.95

18.75 - 1.25y + 0.40y = 11.95

18.75 - 0.85y = 11.95

18.75 - 11.95 = 0.85y

6.8 = 0.85y

therefore y = 6.8/0.85

= 8

substitute y = 8 , into equation 3

x = 15 - 8

x = 7

Therefore , she bought 7 apples and 8 banana

4 0
3 years ago
Shaylee is determining if 6 is the solution to the equation.
Mariulka [41]

Answer:

please give me brainlist and follow

Step-by-step explanation:

42 ÷ w = 7 for w = 6. First, Shaylee must substitute ( ) for ( ). To simplify, Shaylee must divide ( ) by ( ) .

4 0
3 years ago
sales at a local ice cream shop went up 30% in 5 years. if 18,000 ice cream cones were sold in that current year, find the numbe
Setler79 [48]

Answer:

13,846\ cones

Step-by-step explanation:

Let

x -----> the number of ice cream cones sold 5 years ago

Remember that

100\%+30\%=130\%=130/100=1.3

we know that

Sales 5 years ago, multiplied by the 30% increase should equal 18,000 ice cream cones.

so

The linear equation that represent this problem is

1.30x=18,000

Solve for x

Divide by 1.3 both sides

x=13,846\ cones

6 0
3 years ago
The scatter plot shows the number of DVDs Aaron sold in different months:
netineya [11]
We'll say that months = n. 

Make a set of the DVD's sold:

{20, 50, 80, 110, 140...}

In month 1, Aaron sold 20 DVDs. There is no data for month 0.

There is a constant increase of 30 DVDs every month. We can make an equation out of this to fit this data set:

a = 30n - 10

a represents the DVDs made.

We need to subtract 10 in this equation, as the starting point is 20, and the increase of 30 is different from the increase from n = 0 to n = 1.

We are looking for the amount of DVDs Aaron sold on the 13th month. Plug 13 into the equation:

n = 13
30(13) - 10 = 390 - 10 = 380

The predicted number of DVDs Aaron will sell on the 13th month is 380.
4 0
3 years ago
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