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3 years ago

Henry bought 1/4 pounds of screws and 2/5 of backstop build a skateboard ramp. What is the total weight of the screws and nails

Mathematics

1 answer:

nexus9112 [7]3 years ago

6 0

It equals 0.65 pounds

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Find the value of x <br> Please help this is due 6pm

Varvara68 [4.7K]

In SOHCAHTOA you want to use cosine (CAH)
Cos75 = x/30
Use algebra to get x by itself.
So type into your calculator:

30cos(75) which equals 7.76

5 0

3 years ago

What is the simplified form of the quantity of x plus 9, all over 5 − the quantity of x plus 5, all over 5?

ANEK [815]

Answer:

the quantity of 4 over 5

Step-by-step explanation:

According to the description, we have the quantity $\frac{x+9}{5} -\frac{x+5}{5}$

Since both fractions have the same denominator (5), we just need to subtract the numerators:

$\frac{x+9}{5} -\frac{x+5}{5}=\frac{x+9-(x+5)}{5} =\frac{x+9-x-5}{5} =\frac{4}{5}$

Now we know that the simplified form of the expression is $\frac{4}{5}$ ; translating that fraction into words we get: the quantity of 4 over 5

We can conclude that the simplified form of the quantity of x plus 9, all over 5 − the quantity of x plus 5, all over 5 is the quantity of 4 over 5

5 0

3 years ago

What are the common multiple of 4 and 6 between 1 and 42

Rom4ik [11]

Answer: 300

Step-by-step explanation:

6 0

3 years ago

The volumes of two similar figures 27mm^3 and 1331mm^3. If the surface area of the smaller figure is 18mm^2, what is the surface

nlexa [21]

$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{ccccllll}
&Sides&Area&Volume\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array} \\\\
-----------------------------\\\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\
-------------------------------\\\\$

$\bf \cfrac{small}{large}\qquad \cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\qquad thus\qquad \cfrac{\sqrt[3]{27}}{\sqrt[3]{1331}}=\cfrac{\sqrt{18}}{\sqrt{a}}
\\\\\\
\cfrac{3}{11}=\sqrt{\cfrac{18}{a}}\implies \left( \cfrac{3}{11} \right)^2=\cfrac{18}{a}\implies \cfrac{3^2}{11^2}=\cfrac{18}{a}\implies a=\cfrac{11^2\cdot 18}{3^2}$

and surely, you know how much that is.

6 0

3 years ago

This question is hard and I need help bye-

ikadub [295]

Answer:

77.5 will be the correct answer

Step-by-step explanation:

oki!

so 58 ÷ 19 is 3.05, and round it! we will get 3.1

so we multiply 25 by 3.1 and get 77.5!

8 0

3 years ago