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3 years ago

62 decreased by 37% i would like to know what that is cause i have a test tomorrow and i need help understanding this

1 answer:

4 0

$37 \% \ of \ 62
\\\ 37 = .37
\\\ "of" \ mean \ to \ multiply
\\\ .37*62
\\\ 22.94
\\\ 62-22.94 = 39.06
\\\ \boxed{39.06}$

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What is the solution to the linear equation?<br><br> 4b + 6 = 2 – b + 4

Lady_Fox [76]

Answer:

The answer is b=0

Step-by-step explanation:

Add b to both sides

5b+6=2+4

combine like terms

5b + 6= 6

subtract 6 from both sides

5b=0

divide

b=0

hope this helped

5 0

3 years ago

Read 2 more answers

Help....................

Serhud [2]

Answer:

A) $m=\frac{350}{25}$

Step-by-step explanation:

We are trying to find how long it will take Carlos to have $500 TOTAL, so we need to subtract what he already has ($150) to get the value we want to divide by $25 to figure out how many months it will take him to save up the rest. The given answer above is just a simplified way of writing $m=\frac{500-150}{25}$ , if that makes more sense.

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3 years ago

R, S, Q and P are the midpoints of OC, CB, BA and OA respectively.

Stolb23 [73]

Answer:

See below.

Step-by-step explanation:

Draw segment OB.

In triangle OBC, points R and S are the midpoints of sides OC and BC, respectively. That makes RS parallel to OB.

In triangle OBA, points P and Q are the midpoints of sides OA and BA, respectively. That makes PQ parallel to OB.

Since segments RS and PQ are parallel to segment OB, then RS and PQ are parallel to each other.

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3 years ago

A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 166 feet and a maximum height of 40 feet. Find

scoray [572]

Answer:

38.27775 feet

Step-by-step explanation:

The bridge has been shown in the figure.

Let the highest point of the parabolic bridge (i.e. vertex of the parabola) be at the origin, $O(0,0)$ in the cartesian coordinate system.

As the bridge have the shape of an inverted parabola, so the standard equation, which describes the shape of the bridge is

$x^2=4ay\;\cdots(i)$

where $a$ is an arbitrary constant (distance between focus and vertex of the parabola).

The span of the bridge = 166 feet and

Maximum height of the bridge= 40 feet.

The coordinate where the bridge meets the base is $A(83, -40)$ and $B(-83, -40).$

There is only one constant in the equation of the parabola, so, use either of one point to find the value of $a$ .

Putting $A(83,-40)$ in the equation (i) we have

$83^2=4a(-40)$

$\Rightarrow a=-43.05625$

So, on putting the value of $a$ in the equation (i), the equation of bridge is

$x^2=-172.225y$

From the figure, the distance from the center is measured along the x-axis, x coordinate at the distance of 10 feet is, $x=\pm 10$ feet, put this value in equation (i) to get the value of y.