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disa [49]
3 years ago
11

An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are s

hown below:
y = x + 20
y = –x + 2

Which is a correct step to find x and y?


Multiply the equations to eliminate y.

Add the equations to eliminate x.

Write the points where the graphs of the equations intersect the x-axis.

Write the points where the graphs of the equations intersect the y-axis.
Mathematics
2 answers:
NARA [144]3 years ago
8 0

Answer: Add the equations to find the sum of x

Thank you and please click the heart button

Scorpion4ik [409]3 years ago
4 0
Add the equations to eliminate x.
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An angle measures 42 less than its complementary angle. What is measure of each angle?
yaroslaw [1]
First angle = x
Second angle = x - 42
Sum both complementary angles = 90

x+x-42=90
2x=132
x=66⁰    -  First angle
x-42=66-42=24 
24⁰ - Second angle
6 0
3 years ago
In 2000, the population of Massachusetts
Zepler [3.9K]

Answer:

The population reaches 7 million people in the year 2032.

Step-by-step explanation:

We have that

f(x) = 6.3*(1.0032)^{x}

Using this model, find the year when the population reaches 7 million people.

This is x years after 2000, in which x is found when f(x) = 7. So

f(x) = 6.3*(1.0032)^{x}

7 = 6.3*(1.0032)^{x}

(1.0032)^{x} = \frac{7}{6.3}

(1.0032)^{x} = 1.11

We have to following logarithm rule

\log{a^{x}} = x\log{a}

So we apply log to both sides of the equality

\log{(1.0032)^{x}} = \log{1.11}

x\log{1.0032} = \log{1.11}

x = \frac{\log{1.11}}{\log{1.0032}}

x = 32.66

2000 + 32.66 = 2032

The population reaches 7 million people in the year 2032.

3 0
3 years ago
Complete each statement with a number that makes the statement true.
Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

1). (d). 5°C < 7°C

2). (a). - 8°C < - 3°C  

3). (c). 4°C > - 4°C

4). (b). - 10°C > - 16°C

7 0
3 years ago
Help, please!!! I will mark brainlisit
Marina86 [1]

Answer:

I beleve the answer is 112/350  and x/100

I'm not sure how to find the percent (sorry) but I hope this helps :)

7 0
3 years ago
Please help me I need the answer
VMariaS [17]

Check the picture below.

well, since the triangle is an isosceles, with twin sides and twin angles at the "base", let's check what the angle at R is, 15(7) - 31 = 74, and her twin sister at T is also 74, that means that the angle at S is 180 - 74 - 74 = 32.

4 0
3 years ago
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