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4 years ago

2.50+ 1.50(m-1)=17.50

Mathematics

2 answers:

neonofarm [45]4 years ago

4 0

Answer: m = 11

Step-by-step explanation: Isolate the variable by dividing each side by facotrs that don't contain the variable.

Hope this helps you out! ☺

Pie4 years ago

4 0

Answer:

m = 11

Step-by-step explanation:

To find m, we solve this equation:

2.50+ 1.50(m-1)=17.50

We subtract 2.50 from both sides:

1.50(m-1) = 15

Next we divide by 1.5 on both sides:

m - 1 = 10

Lastly we add one to both sides:

m = 11

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6 * ( 12 - 7.5 ) - 7

Paladinen [302]

Answer: 20

Explanation: Alright, so basically you’re going to want to use PEMDAS (Parenthesis, Exponents, Multiplication/ Division, Addition/ Subtraction)

* just means multiply.. sooo the problem looks like this:

6x(12-7.5)-7

We’ll start at the parentheses :)

So (12-7.5) = 4.5

Now our problem looks like: 6x(4.5)-7

Following PEMDAS, the next thing to come up is multiplication! So we’re going to multiply 6 by 4.5 ...

6x4.5=27

After this our problem looks like: 27-7

So now it’s just simple math...

27-7= 20

5 0

3 years ago

Read 2 more answers

If x-3 is a factor of x3+4x2+kx-30.Find the value of k.

Bogdan [553]

Answer:

k=-11

Step-by-step explanation:

$x^{3}+4x^{2}+kx-30$

if $x-3$ is a factor,

$(3)^{3}+4(3)^{2}+k(3)-30=0\\27+4*9+3k-30=0\\27+36+3k-30=0\\33+3k=0\\3k=-33\\k=-11$

3 0

3 years ago

A large container holds 8 gallons of water. It begins leaking at a constant rate. After 48 minutes, the container has 5 gallons

Juliette [100K]

Answer:

The water is leaking at the rate of 0.0625 gal/min.

Step-by-step explanation:

Rate of change

The rate of change (ROC) is a measure that compares two quantities, usually to know how fast one variable changes in time.

The container holds 8 gallons of water and is leaking at a constant rate to be calculated later.

When 48 minutes have passed, the container has 5 gallons of water left. This means it has leaked 8 gallons - 5 gallons = 3 gallons.

Calculating the rate at which it's leaking:

$\displaystyle r=\frac{3\ gallons}{48\ min}$

r = 0.0625 gal/min

The water is leaking at the rate of 0.0625 gal/min.

5 0

3 years ago

Can someone help me plz

Anton [14]

Answer:

The division was completed in the wrong order

Step-by-step explanation:

To convert $\frac{5}{8}$ to a percent

The numerator is divided by the denominator, that is

0.625

8 | 5.0

Multiply 0.625 × 100% = 62.5%

5 0

3 years ago

Which expressions are equivalent to 4(4a+5)4(4a+5)

SSSSS [86.1K]

Answer:

(384a+400)

Step-by-step explanation:

4(4a+5)4(4a+5)

first multiply the 4s in (8a+20)(8a+20)

then multiply the two ( )( )

64a+160a+160a+400

combined like terms

(384a+400)

3 0

3 years ago