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Lelu [443]
3 years ago
9

Change to standard form. Please help, ty! Will mark brainliest!

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Step-by-step explanation:

6. 7x + 7y = -11

7. -1x + 8y = 12

8. 9x + 11y = -7

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The price of an item yesterday was $110 . Today, the price fell to $77 . Find the percentage decrease.
Andreas93 [3]
Subtract 110 dollars from 77 dollars to get your answer of 33 dollars


Hope this helps
4 0
3 years ago
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The local craft fair charges the vendors a flat rate of $15 plus $10 for each hour that they spend at the fair. If the vendor ow
bearhunter [10]

Answer:

Step-by-step explanation:

10h+15=65 subtract 15 from each side

10h=50, divide each side by 10

h=5

He was at the fair for 5 hours

8 0
2 years ago
A guy wire runs from the top of a cell tower to a metal stake in the ground. Marques places a 11-foot tall pole to support the g
astra-53 [7]

The Pythagorean theorem computed shows that the length of the guy wire, to the nearest foot, is 207 ft.

<h3>How to solve the length?</h3>

Here, we have two similar right triangles, ΔABE and ΔCDE.

CD = 11 ft

DE = 2 ft

BD = 35 ft

First, find AB:

AB/11 = (35 + 2)/2

AB/11 = 37/2

Cross multiply

AB = (37 × 11)/2

AB = 203.5 ft

Then, apply Pythagorean Theorem to find AE:

AE = √(AB² + BE²)

AE = √(203.5² + 37²)

AE = 207 ft

Therefore, the length of the guy wire is 207 ft.

Learn more about Pythagorean theorem on:

brainly.com/question/654982

5 0
1 year ago
Solve the following literal equation for r in
grandymaker [24]
400 because I said so and u are asking me is here is the answer
8 0
2 years ago
GH bisects FGI. Find the measure of HGI<br><br> •15°<br> •21°<br> •10°<br> •8°
tester [92]

Answer:

m<HGI=21°

Step-by-step explanation:

we know that

If GH bisects m<FGI then

m<FGH=m<HGI

substitute the values

(2x+1)°=(3x-9)°

solve for x

3x-2x=1+9

x=10°

The measure of angle HGI is equal to

(3x-9)° ------> substitute the value of x

3*10-9=21°

m<HGI=21°

3 0
2 years ago
Read 2 more answers
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