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blondinia [14]
3 years ago
14

Solve the equation. Then check your solution.

Mathematics
2 answers:
ElenaW [278]3 years ago
7 0

Step-by-step explanation:

4/5+x=3/7

x=3/7-4/5

x=15-28/35

x= -13/35 option D

const2013 [10]3 years ago
3 0

Answer:

(d) -13/35

Step-by-step explanation:

\cfrac{4}{5} + x = \cfrac{3}{7}  \\ \\ \\ x = \cfrac{3}{7} - \cfrac{4}{5}\\ \\ \\  x = \cfrac{3 \times 5}{7 \times 5} - \cfrac{4 \times 7}{5 \times 7} \\ \\ \\  x = \cfrac{15}{35} - \cfrac{28}{35} \\ \\ \\ x = \cfrac{-13}{35} \\ \\ \\ x = -\cfrac{13}{35}

Answer : (d) -13/35

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ch4aika [34]

Answer:

.75cm³

Step-by-step explanation:

To find the volume of a shape like this it is,

base×height×width.

In this case it is .5×.5×3=.75cm³

4 0
3 years ago
Read 2 more answers
A. 530 ft^2<br><br> B. 500 ft^2<br><br> C. 470 ft^2<br><br> D. 450 ft^2
Angelina_Jolie [31]

Answer: OPTION A.

Step-by-step explanation:

Find the length scale factor by dividing the known length of the larger triangle by the known length of the smaller triangle:

lenght\ scale\ factor=\frac{35}{25}=\frac{7}{5}

Then, the  area scale factor is:

area\ scale\ factor=(\frac{7}{5})^2=\frac{49}{25}

To find the area of the the larger triangle, multiply the area of the smaller triangle by the area scale factor. Then:

A_{(larger)}=(270ft^2)(\frac{49}{25})=529.2ft^2

So, the option that shows an approximation of the area of the larger triangle is the option A:

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4 0
3 years ago
X + 5y =28 2x +3y =21
pantera1 [17]

Answer:

x= 10x/3 -7

y= -2x/3 +7

Step-by-step explanation:

Hope this helps.

5 0
3 years ago
Andrea is shopping for items for her pet sitting business because the store is having a sale where everything in the store is 5%
Lubov Fominskaja [6]
Given:
cat carrier : 39.99
cat tower: 19.99
1st discount : 5%
2nd discount: 15% - cat tower

39.99 * 5% = 1.99
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19.99 * (5% + 15%) = 19.99 * 20% = 3.99
19.99 - 3.99 = 16

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Andrea estimated correctly.
8 0
3 years ago
Read 2 more answers
Is this a right triangle 5ft, 12ft, 15ft
Elodia [21]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ You can test it out using Pythagoras' theorem

c^2 = a^2 + b^2

Substitute in the values:

c^2 = 5^2 + 12^2

c^2 = 169

Square root it:

c = 13

No, this isn't a right angles triangle

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

4 0
3 years ago
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