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3 years ago

An object is moving at a speed of 920 yards every 3.5 hours Express the speed in miles per week

Mathematics

1 answer:

Kaylis [27]3 years ago

6 0

Answer:

25.05 miles per week

Step-by-step explanation:

We know that,

1 mile = 1760 yards

⇒ 920 yards = 0.522 mile

1 week = 168 hour

We need to find ts speed in miles per week.

Speed = distance/time

$v=\dfrac{920\ \text{yards}}\\\\v=\dfrac{0.522\ \text{miles}}{\dfrac{3.5}{168}\ \text{week}}\\\\v=25.05\ \text{miles/week}$

So, the speed of the object is 25.05 miles per week.

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Please solve : -9b(b+2)=0

Illusion [34]

Answer:

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−9b2−18b=0

Step 2: Factor left side of equation.

(−9b)(b+2)=0

Step 3: Set factors equal to 0.

−9b=0 or b+2=0

b=0 or b=−2

4 0

4 years ago

Sam is baking 10 pies for a school bake sale. He uses 21 cups of apples for 6 pies. How many cups of apples will he need to make

sertanlavr [38]

Answer:

Step-by-step explanation:

6 pies = 21 cups of apples

1 pie = 3.5 cups of apples

10 pies = 35 cups of apples

7 0

3 years ago

What is the slope of the line x = 3?<br> Answer here

diamong [38]

Yo sup??

given line is x=3

this is a line which is parallel to the y axis.

Since it's parallel to the y axis it's slope is infinity.

Hope this helps.

5 0

3 years ago

The results of a test of a metal are shown in the table, with strain in meters per meter, andstress in units called megapascals,

shusha [124]

The metal obey this law for values of strain until 0.05, where we have a linear relationship (each increase of 0.01 in the strain causes an increase of 100 in the stress). After this point, we don't have a linear relationship anymore.

c. Since an increase of 0.01 in the strain causes an increase of 100 in the stress, the slope is:

$m=\frac{100}{0.01}=10000$

Now, calculating the coefficient b (y-intercept), we have:

$\begin{gathered} (0.01,100)\colon \\ 100=0.01\cdot10000+b \\ 100=100+b \\ b=0 \end{gathered}$

So the equation is:

$y=10000x$

The maximum value of stress is 560, and occurs at strain = 0.07.

8 0

1 year ago

Helppp how do u do 12

Delicious77 [7]

B is the correct answer

$\frac{x}{100} = \frac{53}{106} \\ x = \frac{53 \times 100}{106} = \frac{5300}{106} = 50$

good luck

4 0

3 years ago

Read 2 more answers