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3 years ago

7

HELP! Will give branliest

1 answer:

Alenkasestr [34]3 years ago

8 0

Answer:

maybe 10

if this is wrong then sorry

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How many solutions are there to the following system of equations?

sweet [91]

$4x-8y=0 \\
\underline{-3x+8y=-7} \\
4x-3x=0-7 \\
x=-7 \\ \\
4x-8y=0 \\
4 \times (-7)-8y=0 \\
-28-8y=0 \\
-8y=28 \\
y=\frac{28}{-8} \\
y=-\frac{7}{2} \\ \\
 \left \{ {{x=-7} \atop {y=-\frac{7}{2}}} \right.$

There is one solution to this system of equations. The answer is B.

6 0

3 years ago

Read 2 more answers

Answer correctly please , will mark brainliest answer !!!!

Afina-wow [57]

Answer:

x-2

Step-by-step explanation:

(7x^2-14x)/7x

Distribute the 7

x-2

7 0

3 years ago

Charley's grade in the three quarters are 85, 88, and 92. If she targets to have an average

topjm [15]

Step-by-step explanation:

We can set up an average equation in the form, where x is the last score in the fourth quarter:

$\frac{85 + 88 + 92 + x}{4} = 90$

$85 + 88+92 + x =360\\\\x = 95$

She needs at least a 95 on the last quarter to average 90 in all four quarters.

5 0

3 years ago

membership in a digital library has a $5 startup fee and then cost $9.95 per month memberships in a video streaming service cost

UNO [17]

With this information you can write the expression
9.95m + 5 = 7.99m
This demonstrates the cost for each one after m months.

3 0

3 years ago

Micah is buying gravel for a tock garden that will be

dalvyx [7]

Answer:

Area= 15,414.0127

Step-by-step explanation:

See picture attached

4 0

3 years ago