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igomit [66]
3 years ago
15

Select the correct answer.

Mathematics
2 answers:
Likurg_2 [28]3 years ago
5 0

Answer:The answer is C

Step-by-step explanation:

When you plug it in 7*2 is 14+ 5*3 is 15 you add 14+15 you get 29 and then for the other equation you do 12-5 which gives you the x value of 7. Hope this helps.

Rudik [331]3 years ago
4 0
The answer is C hope this helps..let me know
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Evaluate 3x-4y when x=5 and y=-1
balandron [24]

Answer:

19 is the answer

Step-by-step explanation:

3x - 4y

= <em>3</em><em> </em><em>×</em><em> </em><em>5</em><em> </em><em>-</em><em> </em><em>4</em><em> </em><em>×</em><em> </em><em>(</em><em>-1</em><em>)</em>

= <em>1</em><em>5</em><em> </em><em>+</em><em> </em><em>4</em><em> </em>

= <em>1</em><em>9</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>answer</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>you</em><em> </em>

8 0
2 years ago
20
elena-s [515]

Answer:

12 in

Step-by-step explanation:

the scale factor of the enlarged frame is found by comparing the widths

original width : enlarged width = 2 : 6 = 1 : 3

That is 3 times the original width , then

enlarged height = 4 × 3 = 12 in

7 0
3 years ago
80 points!!! I desperately need help! tell me how to do this! PLZ<br>(4k+5)(k+1)=0
Len [333]

Lets solve your equation step by step:

(4k + 5)(k + 1) = 0



Step 1: Simplify both sides of the equation:

4k^2 + 9k + 5 = 0



Step 2: Factor left side of equation:

(4k + 5)(k + 1) = 0



Step 3: Set factors equal to 0:


4k + 5 = 0 or k + 1 = 0


k = - 5/4 or k = - 1






Answer: k = - 5/4 or k = - 1








Hope that helps!!!! ( Answer: k = -5/4 or k = -1)

5 0
3 years ago
Read 2 more answers
The distance a train travels d is proportional to a constant rate of speed r at different times t which equation shows the relat
Anarel [89]

Answer:

D

Step-by-step explanation:

d = rt so to isolate r you divide both sides by t, leaving you with r=d/t

its basically speed=distance/time, or s=d/t if that's more farmiliar to you

6 0
3 years ago
Find x and y. Give reasons to justify your solution.
Alekssandra [29.7K]

Answer:

x = 32

y = 35

Step-by-step explanation:

x = 32 because they are vertical angles. Vertical Angles means a pairs of opposite angles made by two intersecting lines.

y = 35 because the vertical angle for y is 35 (view attached image below). Also, if we add all the angles together in the image, it comes out to a sum of 360 degrees, which is a full circle.

5 0
3 years ago
Read 2 more answers
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