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IrinaK [193]
3 years ago
8

Mx+nx=p solve for x please

Mathematics
1 answer:
Irina-Kira [14]3 years ago
5 0
X(m+n) = p
x = p/(m+n)

Hope this helps!
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A rectangular floor is 12 ft wide and 18 ft long. How much will it cost to carpet the floor if the carpet costs $1.39 per square
Oliga [24]
It will cost 300.24$ =12*18*1.39
4 0
3 years ago
Solve the system by substitution.<br> y = -7x. y = -5x + 10​
ohaa [14]

Answer: (-5,35)

Step-by-step explanation:

-7x=-5x+10

Get x on one side by adding 5x

-2x=10

Simplify by dividing by -2

X=-5

Substitute into y=-7x

Y=-7(-5)

Simplify

Y=35

5 0
3 years ago
Alexa has some dimes and some quarters. She has a minimum of 28 coins worth a maximum of $5.05 combined. If Alexa has 17 quarter
Lerok [7]

Answer:

There are no possible solutions

Step-by-step explanation:

Given:

Minimum number of coins Alexa has =28 coins

Number of quarters Alexa has = 17 quarters

Total amount in coins = $5.05 = 505 cents

Let number of dimes be = x coins

So we can have two inequalities.

1) Total number of coins

x+17\geq28\\  [Since minimum number of coins=28]

2) Total value of coins

10x+(25)(17)\leq505 [As 1 dime=10 cents and 1 quarter=25 cents]

10x+425\leq505

Solving inequality (1)

Subtracting both sides by 17.

x+17-17\geq28-17

∴ x\geq 11

Solving inequality (2)

Subtracting both sides by 425.

10x+425-425\leq505-425

10x\leq 80

Dividing both sides by 10.

\frac{10x}{10}\leq \frac{80}{10}

∴ x\leq 8

On combining both solutions

x\geq 11 and  x\leq 8 ,

we see that there are no possible solutions as number of dimes cannot be ≥11 and ≤8 at the same time.

7 0
3 years ago
Could someone help me with this?? thanks!
ANEK [815]

Answer:

Step-by-step explanation:

    1/4                     ( x+10)                   =                x -4

one fourth the sum of x and 10 is identical to x minus 4

5 0
3 years ago
What is the value of − 9 × ( 1 4 ) ÷ ( − 0.75 ) ?
andre [41]

Answer: 168

Step-by-step explanation:

1. -9 * 14 = -126

2. -126/ -0.75 = 168

8 0
3 years ago
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