Answer:
A. (2,10)
Step-by-step explanation:
5x + y = 20
y = 5x
The second equation is already solved for y, so substitute 5x for y in the first equation to find x.
5x + 5x = 20
10x = 20
x = 2
Now substitute 2 for x in the second original equation to find y.
y = 5(2)
y = 10
Answer: (2, 10) which is A.
P² - r²
subtitute p =10 and r= -4
10² - (-4)² = 100 - 16 = 84
Answer:
x = 24
Step-by-step explanation:
ED is the angle bisector of ∠GEH , thus the following ratios are equal
= , that is
= ( cross- multiply )
56(x + 4) = 1568 ( divide both sides by 56 )
x + 4 = 28 ( subtract 4 from both sides )
x = 24
Answer:
the ounces of dough did you buy is 78
Step-by-step explanation:
The number of dough ounces that should be buy is given below:
Given that
There is a requirement of 6 dough ounces and 4 sauce ounces
So for each person it would be
= 4 + 6
= 10
Now the total ounces bought is 130
So, the number of people used
= 130 ÷ 10 ounces
= 13 people
Now let us assume the number of dough ounces be x
Now if there is 6 dough ounces and there are 13 people
So, the total dough ounces purchased is
x = 6 × 13
= 78
Hence, the ounces of dough did you buy is 78