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cluponka [151]
3 years ago
9

Find the solution to the following system using substitution or elimination:

Mathematics
2 answers:
Fittoniya [83]3 years ago
8 0

Answer:

(2,1)

Step-by-step explanation:

y = -4x + 9  -------------->eq1

y = 3x - 5  --------------->eq2

consider eq 1 and put in eq2

-4x+9=3x-5

add -9 on both sides

-4x=3x-14

add -3x on both sides

-4x-3x=-14

-7x=-14

x=2

put in eq1

y=-4(2)+9

y=1

S.S=(2,1)

AnnZ [28]3 years ago
7 0

Answer:

a

Step-by-step explanation:

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A cash register contains only five dollar and ten dollar bills. It contains three times as many five dollar bills as ten dollar
Finger [1]

Answer:

38

Step-by-step explanation:

Let x be the number of ten dollar

Number of five dollar=3x

Total amount of money in the cash register=$950

We have to find the number of ten dollar bill in the cash register.

According to question

5\times (3x)+10x=950

15x+10x=950

25x=950

x=\frac{950}{25}

x=38

Hence, number of  ten dollar bills  in the cash register=38

3 0
3 years ago
(2x3)^2=5^2 <br><br> Need help on this please
Leya [2.2K]

Can you check your question please

(2×3)^2

=6^2

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7 0
3 years ago
identify the coordinates of four points on the line with each given slope and y-intercept. slope= 1.5, y-intercept= -3
Whitepunk [10]

The slope-intercept form:

y=mx+b

m - slope

b - y-intercept

We have the slope = 1.5 and y-intercept b = -3. Substitute:

y=1.5x-3

Choose any value of x and calculate y:

for x = -2

y=1.5(-2)-3=-3-3=-6\to(-2,\ -6)

for x = -1

y=1.5(-1)-3=-1.5-3=-4.5\to(-1,\ -4.5)

for x = 0

y=1.5(0)-3=0-3=-3\to(0,\ -3)

for x = 1

y=1.5(1)-3=1.5-3=-1.5\to(1,\ -1.5)

for x=2

y=1.5(2)-3=3-3=0\to(2,\ 0)

<h3>Answer: (-2, -6); (-1, -4.5); (0, -3); (1, -1.5); (2, 0)</h3>
7 0
4 years ago
If Stanley’s monthly budget is $3000, what does his annual salary need to be in order to cover his budget?
Natali [406]

Answer:

36000 per year

Step-by-step explanation:

To find the annual salary, we need to take the monthly budget and multiply by the months in a year

3000 * 12 months

36000 per year

7 0
2 years ago
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aliina [53]

Answer:

105 feet per hour

Step-by-step explanation:

correct me if im wrong

4 0
3 years ago
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