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3 years ago

Jayda take 4 hours to deliver 156 newspapers. How many newspapers can Jayda deliver in one hour?

Mathematics

2 answers:

Oksana_A [137]3 years ago

8 0

Answer:

Step-by-step explanation:

Delvig [45]3 years ago

4 0

Answer:

39 is the answer you are looking for

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At his birthday party Joey got $100 from each of his 2 grandmothers $40 from his dad and $5 from sister, how much did he get? Dr

horsena [70]

He got $245 for his birthday

6 0

4 years ago

What is the percent for .166

Westkost [7]

To turn a decimal into a percentage, multiply the decimal by 100 and add a percent sign.
.166 x 100=16.6
And add a percent sign
16.6%
<span>Hope this helps. </span>

8 0

3 years ago

zepelin [54]

Answer:

The required equation is: $\mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}$

Step-by-step explanation:

We need to find equation from the table given

x f(x)

3 -5

7 -2

11 1

15 4

We can write equation in the form of $y=mx+b$

where m is slope and b is y-intercept.

Finding Slope

We can used the slope formula to find slope: $Slope=\frac{y_2-y_1}{x_2-x_1}$

From the table we have: $x_1=3, y_1=-5, x_2=7, y_2=-2$

Putting values and finding slope

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-2-(-5)}{7-3} \\Slope=\frac{-2+5}{7-3}\\Slope=\frac{3}{4}$

So, we get slope $m=\frac{3}{4}$

Now, finding y-intercept

Using the slope $m=\frac{3}{4}$ and point (3,-5) we can find y-intercept

$y=mx+b\\-5=\frac{3}{4}(3)+b\\-5=\frac{9}{4}+b\\b=-5-\frac{9}{4}\\b=\frac{-5*4-9}{4}\\b=\frac{-20-9}{4}\\b=\frac{-29}{4}$

The y-intercept is $b=\frac{-29}{4}$

So, the equation having slope $m=\frac{3}{4}$ and y-intercept $b=\frac{-29}{4}$ will be:

$y=mx+b\\y=\frac{3}{4}x-\frac{29}{4}$

The required equation is: $\mathbf{f(x)=\frac{3}{4}x-\frac{29}{4}}$

6 0

3 years ago

Use angle relationships to find the value of x.

Juli2301 [7.4K]

Answer:

x=12.

Step-by-step explanation:

Let's get this straight out of the way, the 3 angles of a triangle ALWAYS add up to 180. Now that that's said, lets begin. Since the opposing side of an angle is the same as the regular side, we simplify to get: 5x+120=180. 180-120=60. so 5x=60. 60/5=12. so x=12.

7 0

3 years ago

Read 2 more answers

How can i calculate the growth rate of the values below

Grace [21]

Answer:

12%

Step-by-step explanation:

The equation for the growth is ...

f(t) = (initial value)×(growth multiplier per period)^(number of periods)

where the growth multiplier is often expressed as a percentage added to 1:

multiplier = 1+r

growth rate = r

This equation has two unknowns:

initial value
growth multiplier

In order to find these, you can make use of two of the supplied data points. I like to choose the ones that are farthest apart, as they tend to average out any errors due to rounding.

Clearly, the table tells you the initial value is 210. If you don't believe, you can put the numbers in the equation to see that:

f(0) = (initial value)×(growth multiplier)^0

210 = (initial value)×1

(initial value) = 210

Using the last data point, we get ...

f(7) = 210×(growth multiplier)^7

464 = 210×(growth multiplier)^7 . . . . . . . . . fill in table value

2.209524 = (growth multiplier)^7 . . . . . . . divide by 210

You can solve this a couple of ways. My calculator is able to take the 7th root, so I can use it to find ...

$\sqrt[7]{2.209524}=\text{(growth multiplier)}\\1.119916\approx \text{(growth multiplier)}$

Alternatively, you can use the 1/7 power:

2.209524^(1/7) = (growth multiplier)

Another way to solve this is to use logarithms:

log(2.209524) = 7×log(growth multiplier) . . . . . take the log

log(2.209524)/7 = log(growth multiplier) . . . . . divide by 7

0.04918553 ≈ log(growth multiplier)

growth multiplier = 10^0.04918553 ≈ 1.11992 . . . . take the antilog

So, our growth multiplier is ...

1 + r ≈ 1.11992

r ≈ .11992 ≈ 12.0%

The rate of growth is about 12% in each period.

_____

Collapsing all of that to a single calculation:

growth rate = (464/210)^(1/(7-0)) -1 ≈ 12.0%

8 0

3 years ago