3 years ago

What is the value of x in the equation 2.5 minus 0.25 x = negative 3?

Mathematics

2 answers:

melisa1 [442]3 years ago

7 0

Answer:

i think the answer is 22

Step-by-step explanation:

......

Aloiza [94]3 years ago

7 0

Answer:

Step-by-step explanation:

I TOOK DA TEST!

HOPE THIS HELPS :D

HAVE A GREAT DAY

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Evaluate the following, if a=7, b=3, c=2

Zinaida [17]

Answer:

Step-by-step explanation:

a^2 - 5bc - 1

a = 7

b = 3

c = 2

7^2 - 5*3*2 - 1

49 - 30 - 1

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2 years ago

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3 years ago

it cost $45 to produce 2 calculators and $143 to produce 4 and $869 to produce 10 how much does it cost to produce 7 calculators

erica [24]

Answer:

210.50

Step-by-step explanation:

45/ 2 = 22.5

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3 years ago

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Amiraneli [1.4K]

U=40
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8 0

2 years ago

How many solutions are there to the system of equations? StartLayout enlarged left-brace 1st row 4 x minus 5 y = 5 2nd row negat

kkurt [141]

Answer:

Only one solution $x=\frac{5}{4},y=0$

Step-by-step explanation:

$4x-5y=5..............(1)\\0.08x+0.10y=0.10...........(2)$

Multiply equation $(2)$ by $50$

$4x-5y=5........(3)$

Now from equation $(1)$ $+$ equation $(3)$

$8x=10\\x=\frac{10}{8}\\x=\frac{5}{4}$

Put the value in equation $(1)$

$5-5y=5\\5y=0\\y=0$

hence only one solution exists $\left(\frac{5}{4},0\right)$ .

3 0

3 years ago

Read 2 more answers