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4 years ago

What is the answer to this problem 18+4(28)

Mathematics

2 answers:

olganol [36]4 years ago

5 0

Answer: 130

Step-by-step explanation: multiply 4 and 28 first because of PEMDAS. After you get 112, add 18 and you get 130.

lbvjy [14]4 years ago

3 0

Answer:

130 is the answer

Step-by-step explanation:

first u do 28 times 4 witch is 112 then u do 112 plus 18 witch is 130

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You planned to work on a project for about 4 and a 1/2 hours today.

zzz [600]

Answer:

$2\frac{3}{4}$

Step-by-step explanation:

Given : You planned to work on a project for about 4 and a 1/2 hours today.

To Find :If you have been working on it for 1 and 3/4 hours, how much more time will it take?

Solution:

Total time to be spent on project today = $4\frac{1}{2}=\frac{9}{2} hours$

You have been working on it for hours = $1\frac{3}{4}=\frac{7}{4}$

Remaining time = $\frac{9}{2} -\frac{7}{4}$

= $\frac{11}{4}$

= $2\frac{3}{4}$

Hence it will take $2\frac{3}{4}$ hours more .

7 0

3 years ago

Make x the subject of the formula <img src="https://tex.z-dn.net/?f=mx%5E2%3Dp" id="TexFormula1" title="mx^2=p" alt="mx^2=p" ali

Aleks [24]

Answer:

x = ± $\sqrt{\frac{p}{m} }$

Step-by-step explanation:

Given

mx² = p ( divide both sides by m )

x² = $\frac{p}{m}$ ( take the square root of both sides )

x = ± $\sqrt{\frac{p}{m} }$

5 0

3 years ago

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prisoha [69]

Answer: A)10 B)14 C) 12 D)10

Step-by-step explanation:

You would cross multiply and divide! So for part A you would multiply 2x55 which equals 110 then divide that by 11 and get 10. You then repeat that for each part!

7 0

3 years ago

Pedro can drive 2 times as fast as Pablo can ride his bicycle. If it takes Pablo 2 hours longer than Pedro to travel 72 miles, h

galben [10]

Pablo can ride his bicycle with speed of 18 miles per hour

Solution:

Given, Pedro can drive 2 times as fast as Pablo can ride his bicycle.

Let the speed of Pablo be "n" miles per hour

Then the speed of the Pedro will be "2n" miles per hour

Now, If it takes Pablo 2 hours longer than Pedro to travel 72 miles,

We have to find how fast can Pablo ride his bicycle?

The formula for speed is given as:

$\text { distance }=\text { speed } \times \text { time }$

Let the time taken by Pedro to travel 72 miles be "t" hours, then time taken by Pablo will be "t + 2" hours

In case of Pablo:

$\begin{array}{l}{72 \text { miles }=\text { speed } \times (t+2) \text { hour }} \\ {\rightarrow 72=n \times(t+2) \rightarrow(1)}\end{array}$

In case of Pedro:

$\begin{array}{l}{72 \text { miles }=\text { speed } \times \text { thours }} \\ {\rightarrow 72=2 n \times t \rightarrow(2)}\end{array}$

Then, equate both (1) and (2)

$\begin{array}{l}{n \times(t+2)=2 n \times t} \\\\ {\rightarrow t+2=2 \times t} \\\\ {\rightarrow t+2=2 t} \\\\ {\rightarrow 2 t-t=2} \\\\ {\rightarrow t=2}\end{array}$

Now, substitute t = 2 in (2)

$\begin{array}{l}{\rightarrow 72=2 n \times 2} \\\\ {\rightarrow 72=4 n} \\\\ {\rightarrow n=18}\end{array}$

Hence, the speed of Pablo is 18 miles per hour.

3 0

3 years ago

a company makes a profit of $1.58 million . This is $2.69 million more than last year. What was the profit last year?

scZoUnD [109]

Just subtract the values :)

5 0

4 years ago