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natima [27]
3 years ago
5

Solve the proportion 7/5=21/x

Mathematics
1 answer:
Rus_ich [418]3 years ago
8 0
If you’re asking what x equals, the answer is 15
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Gabriela has taken 33 quizzes and her average score so far is 8080. if she gets 100100, a perfect score, on the remaining 22 qui
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Her average will be 100078
7 0
3 years ago
Use the functions to find x
suter [353]

Answer:

x = 14

Step-by-step explanation:

f(x) = 10 -  \frac{9}{2} x \\  \\ plug \: f(x) =  - 53 \\  \\  - 53 = 10 -  \frac{9}{2} x \\  \\ \frac{9}{2} x  = 10 + 53 \\  \\ \frac{9}{2} x  = 63 \\  \\ x = 63 \times  \frac{2}{9}  \\  \\ x = 7 \times 2 \\  \\ x = 14

5 0
3 years ago
Nasir and Seif began with an equal number of Skittles. Nasir ate 10 Skittles, and Seif ate 6. Now the ratio of Nasir's Skittles
Finger [1]
X=Amount of skittles at the start.
Nasir ate 10 skittles and Seif ate 6 skittles so the number of skittles they had(x) - how many they both ate equals : 2/3;

(x-10)/(x-6)=2/3
3(x-10)=2(x-6)
3x-30=2x-12
x-30=-12
x=18

They each started with 18 skilttles.
7 0
2 years ago
HELLLPPPP MEEE PLEASEEEE
galina1969 [7]
The correct answer choice is (B)
4 0
3 years ago
Helppppppp its math.....
m_a_m_a [10]

Answer:

1. X is added to 8

2. Subtract 14 by a number

3. Multiply 2 after you add 3 into a number.

4.. Twice a number plus 3

5. Divide 15 by a number

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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