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natka813 [3]
3 years ago
14

5x + 10y = 18

Mathematics
2 answers:
GarryVolchara [31]3 years ago
5 0
5y - 30 + 10y = 18 <== ur answer
SOVA2 [1]3 years ago
4 0
5x + 10y = 18

x = y -6, we substitute this into first equation.

5x + 10y = 18

5*(y - 6) + 10y = 18

5y - 30 + 10y = 18

So it the last option from the top.
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This pair of figures is similar. Find the missing side.​
Harlamova29_29 [7]

Answer:

x=2

Step-by-step explanation:

so if the bigger one is 16 and the other one is 4 that means you need to multiply 4 by 4 to get 16 so to find x you need to divide the 8 by 4 to find your answer

6 0
3 years ago
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PLEASE HELP I ONLY HAVE 10 minutes
Katen [24]

Answer:

The answer is "H [93%, 100%]"

Step-by-step explanation:

<em>I'll edit this in a second to show the process, but it may take a minute. Just have the answer for now.</em>

<em>This is a surprisingly useful question hah, I'll bet many will need to do this.</em>

This question is just finding the average. Pretty simple.

y = 86 + 82 + 91 + 98 + x / 5

y = 357 + x / 5

An easy way is to do the lowest question first, then go from lowest to second lowest and so on. Because if you go to the highest one and the answer is one of the lower ones, well, of course it's going to be within the 90-100 range, but that doesn't necessarily mean it's the answer.

y = 357 + (87) / 5

y = 444 / 5

y = 88.8

Okay, so the answer isn't G. Then let's try H.

y = 357 + (93) / 5

y = 450 / 5

y = 90

Yep, the answer is H. This is because it equals 90, which is indicative of the 90-100% range that Latoya needs to get an "A".

7 0
2 years ago
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Which statement compares the two numbers correctly?
AVprozaik [17]

Answer:

A

Step-by-step explanation:

Six hundred seventy-two thousandths = 0.672

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7 0
2 years ago
Use the Law of Cosines to find the missing angle. In triangle JKL, j=3in., k=4in., and l=2.89., find mJ
slega [8]
Using the law of cosine for Triangle KJL, we can write:

j^{2} = k^{2} + l^{2}-2(k)(l)cos(J)  \\  \\ &#10;2(k)(l)cos(J)=k^{2} + l^{2}- j^{2} \\  \\ &#10;cos(J)= \frac{k^{2} + l^{2}- j^{2}}{2(k)(l)}

Using the values of k,j and l, we can write:

cos(J)= \frac{ 4^{2} + (2.89)^{2} - 3^{2} }{2(4)(2.89)}  \\  \\ &#10;cos(J)= 0.664 \\  \\ &#10;J= cos^{-1}(0.664) \\  \\ &#10;J=48.39

Rounding to nearest integer, the measure of angle J will be 48 degrees.
So option B gives the correct answer
8 0
2 years ago
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If the sum of two consecutive odd numbers is 28 . find the numbers.​
Sauron [17]

Answer:

13 and 15

Step-by-step explanation:

13 and 15 are consecutive odd numbers and

13 + 15 = 28

7 0
3 years ago
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