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mixas84 [53]
2 years ago
11

Solve for the variable. x - 2/7=9/7

Mathematics
2 answers:
stellarik [79]2 years ago
7 0

Answer:

x = 11/7

Step-by-step explanation:

x - 2/7 = 9/7

x = 9/7 + 2/7

x = 11/7

Ipatiy [6.2K]2 years ago
4 0

Answer:x=11/7

Step-by-step explanation:

add the numerator since it was subtracted. do the opposite.

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X^2 + 7x – 18 = 0<br> a<br> {–2, 9}<br> b<br> {–9, 2}<br> c<br> {2, 9}<br> d<br> {–2, –9}
Sedaia [141]

Answer:

b)-9,2

Step-by-step explanation:

x^2+7x-18=0

x^2+9x-2x-18=0

x(x+9)-2(x+9)=0

(x+9)(x-2)=0

therefore

x=-9

x=2

6 0
2 years ago
If x is equal to –2, then find the value of 3x² + 5x​
attashe74 [19]

Answer:

2

Step-by-step explanation:

3*(-2)to power of 2 + 5*-2

= 3*4 + 5*-2

= 12 + -10 = 2

5 0
2 years ago
Katrina drinks 0.5 gallons of water per day which expression shows how to find the number of cups of water she drinks in a week
kobusy [5.1K]

Answer:

56 cups of water

Step-by-step explanation:

Katrina drinks 0.5 gallons of water per day

We have 7 days in a week, hence, the number of gallons of water she drinks per week is calculated as:

1 day = 0.5 gallons

7 days = x

Cross Multiply

1 day × x = 7 days × 0.5 gallons

x = 7 days × 0.5 gallons/1 day

x = 3.5 gallons

Note that 16 cups = 1 gallon

The number of cups of water she drinks per week is

1 gallon = 16 cups

3.5 gallons = x

Cross Multiply

1 gallons × x = 3.5 gallons × 16 cups

x = 3.5 gallons × 16 cups/1 gallons

x = 56 cups

Therefore, Katrina drinks 56 cups of water in a week

3 0
2 years ago
You have 8 dime you trade each dime for 10 pennies. How mainly pennies will you have?
laila [671]
Youll have 80 pennies. dime=.10    10x8=80
6 0
3 years ago
Read 2 more answers
Translate the expression: the product of a number and 4
pickupchik [31]

Answer:

4x

Step-by-step explanation:

3 0
2 years ago
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