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stepan [7]
3 years ago
13

Solve the equations 7x+9y=27 and 4x+5y=13 by combining the equations

Mathematics
1 answer:
Fantom [35]3 years ago
7 0
Is that what you need

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*NEED MAJOR HELP!*
7nadin3 [17]

Answer:

Given equation: 2(x+7) = 36.                ......[1]

Distributive Property of multiplication states that when a number is multiplied by the sum of two numbers, the first number can be distributed to both of those numbers and multiplied by each of them separately i.e,

a \cdot (b+c) =a\cdot b+ a\cdot c

Then,

By using the distributive property in equation [1];

2(x+7) = 36

(2 \cdot x) + (2 \cdot 7) =36

Simplify:

2x+14=36

Divide both sides by 2 in above equation:

\frac{2x+14}{2} =\frac{36}{2}

Simplify:

x+7 = 18.

Therefore, the first correct step would be option B,

after that the next step would be option A then option F as shown above;

Remaining options are not enough information to solve the given equation  2(x+7) = 36.  


8 0
4 years ago
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17.5% of 360 help please!!
earnstyle [38]

Answer:

its 63


             hope this helps

Step-by-step explanation:


8 0
4 years ago
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There is 2 and 3/4 punds of roast beef and 1 and 7/8 pounds of turkey and 2 1/16 pounds of salami if you must put 1/4 of pound o
rosijanka [135]
<span>2 and 3/4 punds of roast beef   2  3/4 =  (4x2) + 3 /4=  11/4 roast beef

</span><span>1 and 7/8 pounds of turkey     1  7/8 =  15/8 </span>turkey 

2 1/16 pounds of salami     2 1/16      33/16 <span>salami

</span><span>if you  put 1/4 of pound of meat 
</span>then 11/4 roast beef   divided by 1/4 = 11/4 x4 = 11 sandwiches roast beef 

15/8 turkey<span> divided  1/4 = 15/8   x 4 = 15/2  = 7 sandwishes
</span>
 33/16 salami divided <span> 1/4  = 33/16 x 4 = 33/ 4 = 8 sandwiches</span>
8 0
3 years ago
During the evening, my parents expect me to wash the dishes and do my homework.
Ket [755]

Answer:

during

Step-by-step explanation:

During the evening, my parents expect me to wash the dishes and do my homework.

a preposition tells you when or where it happened

during is telling you when it happened

8 0
3 years ago
Find the slope of a line that passes through the following
AfilCa [17]
GAZER GAZER INNA BUILDING MANN
7 0
3 years ago
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