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laiz [17]
3 years ago
8

Help Help Help it's in khan academy

Mathematics
1 answer:
inna [77]3 years ago
7 0

Answer:

Step 1 is wrong

Step-by-step explanation:

\frac{1}{4} r+ 2 = 10

\frac{r}{4}  + 2 = 10

\frac{r}{4}  = 10  -  2

\frac{r}{4}  = 8

r = 8 \times 2

r = 32

<h3>Hope it is helpful...</h3>
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a photographer wants to enlarge a 5x7 photo for a wall mural without distorting its width-to- length ratio. What are the largest
krok68 [10]

The largest dimension of the enlarged photo will be: Width= 175 inches and Length= 245 inches.

<u><em>Explanation</em></u>

Dimension of the original photo is 5×7 . That means the ratio of the width to the length is 5 : 7

So, lets assume the width is 5x and length is 7x for the enlarged photo.

Formula for the perimeter of a rectangle =2(length+width)

As the perimeter of the enlarged photo should not exceed 840 inches, so...

2(7x+5x)\leq 840\\ \\ 2(12x)\leq 840\\ \\ 24x\leq 840\\ \\ x\leq \frac{840}{24}\\ \\ x\leq 35

That means the maximum value of x must be 35.

So, the largest possible width =5x=5*35=175 inches

and the largest possible length = 7x= 7*35=245 inches

6 0
3 years ago
Solve 12x - 8 = 9x + 13
Lelechka [254]
X=7

Hope this helps and have a wonderful day!
5 0
4 years ago
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Would love some help on this! Please include step by step Have a good day!
Effectus [21]

- 24 - 16x(  - 1) \\ 6 { }^{2}  \div 9

negative 24 minus 16x (-1) divided by 6^2 divided by 9

ANSWER

four divided by 81 and than X minus 24

4 \div 81x - 24
5 0
3 years ago
Can anyone answer these?
soldier1979 [14.2K]

Answer:

4) 3 for the numerator. 9 for the denominator

5) 6 for the first blank square and 48 for the second blank.

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Step-by-step explanation:

sorry but those are the only ones i know

Hope this helps!

3 0
2 years ago
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4vir4ik [10]

Answer:

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Step-by-step explanation:

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3 years ago
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