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blondinia [14]
4 years ago
11

How do you do number 15 thxxx

Mathematics
1 answer:
vampirchik [111]4 years ago
5 0
The simpliest way to do this is to turn both fractions into decimals

7/10 goes to 0.7 and 2/5 goes to 0.4

then the equation would be 0.7x + 20 = 0.4

hope I've helped!
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33 points Need this fast im timed thx!
Brums [2.3K]

Answer:

do an internet search of webbynet

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Suppose y varies directly with x, and y = 25 when x = 140. What is the value of x when y = 36? A. 140. B. 165. C. 201.6. D. 176
Margarita [4]
The statement suppose <span>that y varies directly with x is best represented as:

y </span>α x

To make it into equality, we insert a proportionality constant, k:

y= kx

Using the initial conditions, we solve for k.

y= kx
<span>y = 25 when x = 140
</span><span>
25 = k(140)
k = 5/28

Thus, when </span><span>y = 36</span><span>,
</span>
36 =5/28x
x = 201.6 -----> OPTION C
6 0
3 years ago
Helga knows that the corresponding angles of two triangles are congruent .She claims that the two triangles must be congruent .I
poizon [28]
The two triangles are congruent because every corresponding side has the same length, & every corresponding angle has the same measure. In short she's correct
8 0
4 years ago
if the humpback whales had traveled at the same rate for 32 days,how many more miles would the have traveled than the grey whale
Nataliya [291]

Answer:

192 miles more than the gray whales.

Step-by-step explanation:

first, get the rate of each whale per day. To put it in simpler terms, divide 2,240 miles by 28 to find how much the humpback whales travel in a day. next, do the same for the gray whales. I got that the humpback whales traveled 80 miles in a day and the gray whales traveled 74 in a day. Multiply 80 miles by 32 days to get the distance the humpback whales travel in 32 days (2,560 miles). Since you know the distance the Gray whales traveled in 32 days, you do not need to solve for it. Subtract 2,560-2,368 and you get 192 miles.


Hope this helped. If you can, label this answer as brainliest. Dont hesistate to ask if you have any questions. <3

6 0
3 years ago
Read 2 more answers
The Concrete Company pours 8 sections of sidewalk, each of which is 256 feet long. What is the length of the entire sidewalk tha
Reika [66]

Answer: 2048 ft

Step-by-step explanation:

Given

The length of each sidewalk is  L=256\ ft

There are eight sections of the sidewalk

The total length of the sidewalk is L+L+\ldots 8\ \text{times}

\Rightarrow 8\times L=8\times 256\\\Rightarrow  2048\ ft

Total length of the entire sidewalk is 2048 ft

7 0
3 years ago
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