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SVEN [57.7K]
3 years ago
6

Solve addition and subtraction word problems using the ruler as a number line

Mathematics
1 answer:
Trava [24]3 years ago
5 0
Its just like using your hand only difference is a ruler unless its a point in it it goes into segments like quarters etc.
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Marco scored 1,753 points
enyata [817]

Answer:

All you have to do is subtract!

<em>1753 - 887</em> = 866

Therefore, Marco scored 866 more points than Jasmine. Hope this helped! :)

3 0
3 years ago
The two triangles are congruent as suggested by their appearance. Find the value of c. The diagram is not to scale.
Nostrana [21]
C = 4
Use the formula a^2 + b^2 = c^2
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3 0
3 years ago
HELP!!!!
ch4aika [34]

Answer:

8 y^{50}

Step-by-step explanation:

Given (64 y Superscript 100 Baseline) Superscript one-half.

Let us write it into an equation.

\left(64 y^{100}\right)^{\frac{1}{2}}

Apply radical rule: \sqrt[n]{a}=a^{\frac{1}{2}} and a^{m+n}=a^m+a^n

\begin{aligned}\left(64 y^{100}\right)^{\frac{1}{2}} &=\sqrt[2]{64 y^{100}} \\&=\sqrt[2]{8^{2} y^{50} y^{50}} \\&=\sqrt[2]{8^{2}\left(y^{50}\right)^{2}} \\&=8 y^{50}\end{aligned}

Hence, 8 y^{50} is equivalent to  (64 y Superscript 100 Baseline) Superscript one-half.

8 0
3 years ago
(11,2) m-7 how do you write in slope form
lara31 [8.8K]

Answer:

y=7x-75

Step-by-step explanation:

use poiint slope formula

8 0
3 years ago
Jack bought a new car in 2014 for 28,000. If the value of the car decreases by 14% each year, write an exponential model for the
elena55 [62]

Answer:

In 2026 car will have a value of $5,000.

Step-by-step explanation:

We have been given that Jack bought a new car in 2014 for 28,000. If the value of the car decreases by 14% each year.

Since we know that an exponential function is in form: y=a*b^x, where,

a = Initial value,

b = For decay or decrease b is in form (1-r), where r represents decay rate in decimal form.

Let us convert our given decay rate in decimal form.

14\%=\frac{14}{100}=0.14

Upon substituting a =28,000 and r=0.14 in exponential decay function we will get,

y=28,000(1-0.14)^x, where x represents number of years after 2014.

Therefore, the function y=28,000(0.86)^x represents the value of car x years after 2014.

To find the number of years it will take to car have the value of $5,000, we will substitute y=5,000 in our function.

5,000=28,000(0.86)^x

Let us divide both sides of our equation by 28,000.

\frac{5,000}{28,000}=\frac{28,000(0.86)^x}{28,000}

0.1785714285714286=(0.86)^x

Let us take natural log of both sides of our equation.

ln(0.1785714285714286)=ln((0.86)^x)

Using natural log property ln(a^b)=b*ln(a) we will get,

ln(0.1785714285714286)=x*ln(0.86)

\frac{ln(0.1785714285714286)}{ln(0.86)}=\frac{x*ln(0.86)}{ln(0.86)}

\frac{-1.7227665977411033893}{-0.1508228897345836}=x

x=11.422447\approx 12  

As in the 12th year after 2014 car will have a value of $5,000, so we will add 12 to 2014 to find the year.

2014+12=2026

Therefore, in 2026 car will have a value of $5,000.

6 0
3 years ago
Read 2 more answers
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