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Tresset [83]
4 years ago
10

Two more than a certain number is 15 less than twice the number. Find the number

Mathematics
2 answers:
AlekseyPX4 years ago
8 0
(x + 2) + 15 = 2x

x+ 17 = 2x

x (-x) + 17 = 2x (-x)

17 = x

x = 17

hope this helps
Svetllana [295]4 years ago
6 0
2+x=2x-15
>> 2+15=2x-x
>> 17 = x

So the answer is <u>17</u>
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A hot air balloon pilot begins to land her balloon. In the first minute the balloon's elevation -336 feet. In the second minute,
vichka [17]

Answer:

-21 Feet

Step-by-step explanation:

-336/16

7 0
3 years ago
Need help with this problem:
Nitella [24]

Answer:

<em>Henson: 3x + y = 163</em>

<em>Garcia: 2x + 3y = 174</em>

<em>adult ticket price: $45</em>

<em>child ticket price: $28</em>

Step-by-step explanation:

Henson Family:

3 adults + 1 child; total $163

3x + y = 163

Garcia Family:

2 adults + 3 children; total $174

2x + 3y = 174

Now we solve the system of equations.

Solve the first equation (Henson Family) for y.

y = 163 - 3x

Substitute 163 - 3x for y in the second equation (Garcia Family).

2x + 3<em>y</em> = 174

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2x + 489 - 9x = 174

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Now substitute 45 for x in the first original equation and solve for y.

3x + y = 163

3(45) + y = 163

135 + y = 163

y = 28

adult ticket price: $45

child ticket price: $28

8 0
3 years ago
What is the size of the angle, below?​
anygoal [31]

Answer:

The size of the angle is between 180 and 360*. I cannot say the exact angle but my guess is correct and the correct answer is in between the 2 numbers.

Step-by-step explanation:

7 0
2 years ago
You MUST show your working out!
yKpoI14uk [10]

Answer:

100.32

Step-by-step explanation:

First, we have to find 14% of 88
14% of 88 is = 88 x 14/100
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Now we have to increase the number 88 by 14%, which means we have to add 14% of 88 (12.32) to the given number (88)  

88 + (14% of 88)

= 88 + 12.32

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8 0
2 years ago
Find 2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2 can you help me
Natali [406]
Alright, so plugging it in, we get 2(-4)^2=2(2)^4+3^2-(-4)^2+2^4. Use PEMDAS with parenthesis and exponents to then get (2)(16)+9-16+16. Multiplying 1 and 16,  we get 32+41-16+16=73
8 0
3 years ago
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