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Verdich [7]
4 years ago
14

Identify the methods PLEASE HELP!!

Mathematics
2 answers:
Nostrana [21]4 years ago
8 0

Answer:

C and D

Step-by-step explanation:

You need to add the 2 equations together, so one equation must be negative and the other positive. You also need to make sure the coefficients to the variables are the same so you can eliminate them. Therefore, A and B are wrong and your correct choices are C and D.

klemol [59]4 years ago
6 0

Answer:

Letter A and B are the answers

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Write an equation in point-slope form for the line that passes through the point with the given slope. (–7, 6), m = 0
Nitella [24]

Answer:

(

y

−

6

)

=

0

(

x

+

7

)

Explanation:

The point-slope formula states:

(

y

−

y

1

)

=

m

(

x

−

x

1

)

Where

m

is the slope and

(

x

1

y

1

)

is a point the line passes through.

Substituting the values from the equation gives:

(

y

−

6

)

=

0

(

x

−

−

7

)

(

y

−

6

)

=

0

(

x

+

7

)

5 0
3 years ago
Are these triangles similar? If so how? If not, explain.
rewona [7]
I think the answer is right triangles sorry its it wrong
5 0
3 years ago
Help me please solve the circled question show your work
Rasek [7]

<u>Part 1)</u> Use the fact that there are 12 inches in a foot

a) How many inches tall is a 7 foot basketball player?

we know that

1 foot=12 inches

so by proportion

\frac{12}{1} \frac{inches}{foot} =\frac{x}{7} \frac{inches}{feet} \\ \\x=12*7\\ \\x=84\ inches

therefore

<u>the answer Part 1a) is</u>

84\ inches

Part b) If a yard is a 3 feet long, how many inches are in a yard?

we know that

1 yard=3 feet

1 foot=12 inches

so

Convert 3 feet to inches

by proportion

\frac{12}{1} \frac{inches}{foot} =\frac{x}{3} \frac{inches}{feet} \\ \\x=12*3\\ \\x=36\ inches    

therefore

<u>the answer Part 1b) is</u>

36\ inches

<u>Part 2) </u>At the farmer's market two pounds of peaches cost $4.20 How much will five pounds cost?

by proportion

\frac{4.20}{2} \frac{\$}{pounds} =\frac{x}{5} \frac{\$}{pounds} \\ \\2*x=4.2*5\\ \\x=4.2*5/2=\$10.5    

therefore

<u>the answer Part 2) is</u>

\$10.5

<u>Part 3) </u>Janice mother gave her a ten dollars bill to buy five pounds each of bananas and apples at the grocery store. When she got there she found that bananas were 80 c per pound and apples were $1.40 per pound.

Did Janice's mother give her enough money? If so, should she receive any change? If not, how much more money does she need?

 we know that

<u>Find the cost of the bananas</u>

5\ pounds*0.80\frac{\$}{pounds}=\$4

<u>Find the cost of the apples</u>

5\ pounds*1.40\frac{\$}{pounds}=\$7

Sum the cost of the bananas and the cost of the apples

\$4+\$7=\$11

\$11 > \$10------> Janice's mother didn't give her enough money

She needs more money

She needs-------> \$11-\$10=\$1

therefore

<u>the answer part 3) is</u>

She needs  \$1 more


3 0
3 years ago
What is the slope of the line passing through the points (0,4) and (-8, -1)?​
telo118 [61]

Answer: The top left one is -3, 6     bottom right is -6, 3

Step-by-step explanation:

3 0
3 years ago
4) Solve the following system of equations by graphing. If the system is inconsistent or the
juin [17]
The equations are dependent (they're the same equation).

If you multiply the bottom one by 5, you get the top one.
7 0
3 years ago
Read 2 more answers
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