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musickatia [10]
2 years ago
15

X + y + 10 = 20 . If y = 2, find the value of x

Mathematics
1 answer:
podryga [215]2 years ago
7 0

Answer:

x = 8

Step-by-step explanation:

x + y + 10 = 20

if y = 2,

=> x + 2 + 10 = 20

=> x + 12 = 20

=> x = 20 - 12

=> x = 8

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- 3 1/5 + (-6 1/2)<br> A -3 2/7<br> B-3 7/10<br> C-9 2/7<br> D-9 7/10
Lelechka [254]

The answer is D -9 7/10

8 0
3 years ago
Tyana has a collection of hoodies and t-shirts. She has 561 pieces of collected clothing in all. The number of hoodies is twice
Delicious77 [7]

Answer:

187 t-shirts and 374 hoodies.

Step-by-step explanation:

(t is shirts)

561 = t + (2t)

561 = 3t

/3. /3

187 = t

ck:

187 + ( 2 times 187) = 561

187 + 374 = 561

561 = 561

7 0
3 years ago
Alex drew a scale drawing of an auditorium. He used the scale 3 inches = 2 feet. If the stage is 30 inches in the drawing, how w
White raven [17]

Answer:

20 feet

Step-by-step explanation:

The scale is 3 inches is to 2 feet

As a ratio, it would be:

\dfrac{3}{2}

The question is what is the actual length of the stage if the drawing is 30 inches. All we need to do is find a ratio proportional to the scale ratio:

\dfrac{3inches}{2feet} = \dfrac{30inches}{xfeet}

Now to find the missing number, cross multiply the fractions first:

\dfrac{3}{2}=\dfrac{30}{x}

(3)(x)=(2)(30)

3x=60

Then solve for x:

3x=60

x=\dfrac{60}{3}

x=20

The answer is 20 feet

8 0
3 years ago
You begin a hike in Death Valley, California, at an elevation of -86 meters. You hike to a point of elevation at 45 meters. What
kotegsom [21]

Answer:

131

Step-by-step explanation:

(-)86+45

86 + 45 = 131

7 0
3 years ago
Which point is a solution to the inequality shown in this graph?
kykrilka [37]

Answer:

The only solution can be (0,-3) point.

Step-by-step explanation:

We have to judge whether the points in options are the solution to the graphed inequality or not.

The first point is (5,-5) which not included in the shaded region of the graph. Hence, it can not be a solution.

The second point is (6,0) which not included in the shaded region of the graph. Hence, it can not be a solution.

The third point is (0,-5) which not included in the shaded region of the graph. Hence, it can not be a solution.

The fourth point is (0,-3). It is on the firm red line which is included in the shaded region of the graph. Hence, it is a solution.

Therefore, the only solution can be (0,-3) point. (Answer)

5 0
3 years ago
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