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dmitriy555 [2]
3 years ago
14

Plz answer this question:

Mathematics
1 answer:
alekssr [168]3 years ago
3 0

Answer:

90°

Step-by-step explanation:

5x+20=9x

20=9x-5x

20=4x

x=5

5x+20+9x=

5(5)+20+9(5)=

25+20+45=

90

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What is the y-intercept of the equation 8x – 3y = 24?
Levart [38]

Answer:

-8

Step-by-step explanation:

Create this equation into a y=mx+b form

8x-3y=24

-8x       -8x           -8 to solve for -3y

-3y=-8x+24

----    ---   ---              divide by -3 to leave y by itself

-3      -3   -3

y= 8

    --- x-8

     3

y intercept is -8

7 0
2 years ago
Read 2 more answers
the width of a rectangle is 7 meters greater than its length.If the area of the rectangle is 170 square meters, write the quadra
Anika [276]

Answer:

x^2+7x-170 = 0

Step-by-step explanation:

To calculate an area of a rectangle, use the formula A=l*w. We know the width is 7m greater than the length. So w = 7 + x. So the area is A= (7+x)*x.

We also know the area is 170. Substitute this value for A and solve.

170 = (7+x)(x)\\170 = 7x+x^2\\x^2+7x-170 = 0


4 0
3 years ago
The opening soccer game at the new arena was attended by approximately 2,800 Caucasians, 4,800 African Americans, and 15,00 Hisp
worty [1.4K]

<u>Answer:</u>

The ratio of African Americans to Hispanics Americans present is 16 : 5  

<u>Explanation:</u>

Given the people attending the soccer game were:

2800 among them are Caucasians

4800 are African Americans

1500 are Hispanics

And, 1400 of those were from other ethnic backgrounds

We have to find the Ratio of African Americans to Hispanics Americans

Therefore,

African Americans : Hispanics Americans = 4800 : 1500

\frac{\text { African American }}{\text { Hispanics American }}=\frac{4800}{1500}=\frac{48}{15}=\frac{16}{5}

Hence, the ratio of African Americans to Hispanics Americans present in the ratio were 16 : 5  

5 0
3 years ago
Which expression gives the area of this figure in square units?
Anastasy [175]

Answer:12+6

Step-by-step explanation:

5 0
3 years ago
Can you help me with this question?
Virty [35]

Answer:

2/3

1

3/2

Step-by-step explanation:

\frac{27}{7} n>\frac{4}{3}

n>\frac{7}{27}*\frac{4}{3}

n>\frac{28}{81}

5 0
2 years ago
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