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2 years ago

Translate “the sum of x and one-half of x” into mathematical expression

Mathematics

1 answer:

Aleks [24]2 years ago

5 0

Answer:

X+ 0.5X or 1.5X

Step-by-step explanation:

the sum means that it want an addition problem. and so it is saying X + 1/2 (0.5)X which gives you 1.5X or you can leave it has X+0.5X

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7is subtracted from the quotient of 48 divided by th<br>e sum of 5 & difference of 11 and 8

kramer

Answer:

7-48=41

5+11-8

bodmas

5+3=8

41÷8=5.125

5 0

2 years ago

Read 2 more answers

You work delivering food for a local farmer. You sell onions from the farm at these prices: 2 for $1.04, 4 for $2.52, 8 for $4.3

kenny6666 [7]

Answer:

D. 9%

Step-by-step explanation:

1.04 / 2 = 0.52

2.52 / 4 = 0.63 best 1

4.32 / 8 = 0.54

9.12 / 16 = 0.57 best 2

if base on the best deal 1 - 0.63

(0.63 - 0.57) / 0.63 = 0.0952 (≈ 0.09 i.e 9%)

8 0

2 years ago

Ava wants to figure out the average speed she is driving. She starts checking her car’s clock at mile marker 0. It takes her 4 m

VLD [36.1K]

<h2>Answer:</h2>

The average speed of car is:

0.75 miles per minutes.

The equation of line is:

$n=\dfrac{3}{4}t$

<h2>Step-by-step solution:</h2>

The table that describes the time and number of miles marked is given by:

Time Miles

0 0

4 3

8 6

Clearly we could observe that with the increase in time by every 4 minutes the number of mile increases by 3.

i.e. the average speed is calculated as the ratio of change in miles to the change in time.

Hence,

$Average\ Speed=\dfrac{3-0}{4-0}\\\\\\i.e.\\\\\\Average\ Speed=\dfrac{3}{4}=0.75$

Hence, the average speed=0.75 miles per minutes.

Also we will find the equation of the lines that related the miles and time by using the two-point formula.

i.e. any line passing through (a,b) and (c,d) is calculated by using the formula:

$y-b=\dfrac{d-b}{c-a}\times (x-a)$

Here (a,b)=(0,0) and (c,d)=(4,3)

i.e. the equation is given by:

$n-0=\dfrac{3-0}{4-0}\times (t-0)\\\\i.e.\\\\n=\dfrac{3}{4}t$

6 0

2 years ago

Read 2 more answers

Michael arthur deported $2,900 in a new regular savings account that earns 5.5 percent interest compounded semiannually he made

il63 [147K]

Answer:

The amount in the account is $3062.4 (Approx) and compound interest is $162.4 .

Step-by-step explanation:

Formula for compounded semiannually

$Amount = P(1 + \frac{r}{2} )^{2t}$

Where P is the principle , r is the rate in decimal form and t is the time.

As given

Michael arthur deported $2,900 in a new regular savings account that earns 5.5 percent interest .

Here

Principle = $2,900

5.5% is written in the decimal form.

$= \frac{5.5}{100}$

= 0.055

Time = 1 year

Put in the formula

$Amount = 2900\times (1 + \frac{0.055}{2} )^{2\times 1}$

$Amount = 2900\times (1 + 0.0275 )^{2\times 1}$

$Amount = 2900\times (1.0275)^{2}$

$Amount = 2900\times 1.056\ (Approx)$

Amount = $ 3062.4 (Approx)

Thus the amount after 1 years is $3062.4 (Approx) .

Now find out the compound interest .

Amount = Principle + Compound interest

Here

Amount = $ 3062.4

Principle = $2,900

Put in the above

$3062.4 = $2,900 + Compound interest

Compound interest = $3062.4 - $2,900

Compound interest = $162.4

8 0

2 years ago

A family travels 513 miles in 7.2 hours. How many miles did they travel in one hour?

nignag [31]

Answer:

71.25 mph

Step-by-step explanation:

5 0

2 years ago