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m_a_m_a [10]
3 years ago
6

I need help!! Can an awesome genius please help me out?​

Mathematics
2 answers:
SOVA2 [1]3 years ago
8 0

Answer:     The answer is D i hope this helps :)

Step-by-step explanation:

tensa zangetsu [6.8K]3 years ago
7 0

Answer:

D

Step-by-step explanation:

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Worth 30 points. Help a homie out
Sauron [17]

Answer:

Multiply the second equation by -3 to get -3x - 9y = -30.

Step-by-step explanation:

When eliminating, you need to find a term with the negative of that term to combine so that they cancel each other out. An example would be 3x in the first equation and (-3x) in another equation so that when added, it becomes: 3x-3x = 0.

In the second equation, you see that there is already an x there and you just need to make it become (-3x). Thus, you multiply the entire second equation by -3 to make -3x. Once you have done that, you can combine the two equations and eliminate 3x from the first equation.

3x + 5y = 30

-3x - 9y = -30

3x + 5y -3x - 9y = 30 + (-30)

0 - 4y = 30 - 30

-4y = 0

<em>You can find y and then x later on from here. </em>

8 0
3 years ago
Many teams?
eimsori [14]

Answer:

75 divided by 15 is 7

Step-by-step explanation:

5 0
3 years ago
the ratio of the angle measures of a triangle are 3:3:4 what angle measures the triangles classification ​
TEA [102]

Step-by-step explanation:

sum of the ratio=3+3+4=10

now,

angle I = 3/10×180=54

angle II= 3/10×180=54

angle III=4/10×180=72

that shows th given triangle is isoceles

6 0
2 years ago
pam deposited $6,900 in a savings account with simple interest. Four months later she had earned $23 in interest. What was the i
3241004551 [841]

Answer:

1%

Step-by-step explanation:

We use the simple interest equation of A=P(1+rt).

A-the total amount with interest earned

P-the initial amount or principal

r-rate

t-time in years

We substitute the values P=6900, A=6923, and t=0.33 since 4 months divided by 12 months is 0.333 years. We then solve for r.

6923=6900(1+r(0.33))\\6923=6900(1+0.33r)\\\frac{6923}{6900} =\frac{6900(1+0.33r)}{6900} \\1.0033=1+0.33r\\1.0033-1=1-1+0.33r\\0.0033=0.33r

Our final step is to divide both sides by 0.33.

\frac{0.0033}{0.33} =\frac{0.33r}{0.33} \\0.01=r

This is the decimal of the rate. We convert to a percentage by multiplying by 100. 0.01(100)=1%.


5 0
2 years ago
**NEED HELP???!!! ****
Nezavi [6.7K]
210/20=10.5 per hour
So
2000/10.5=190 hours
3 0
3 years ago
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