3 years ago

If a=3 and b=4 then b exponet of a

Mathematics

1 answer:

kumpel [21]3 years ago

5 0

That's true if that's what ur asking .. I think

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Uncle Jason is twice as old as his nephew Ralph, and 10 years ago he was three times as old as Ralph. Find their present ages.

cluponka [151]

Answer:

40 and 20

Step-by-step explanation:

Uncle Jason's age = x
Nephew Ralph age = y

<h3>Solution</h3>

Age now:

x= 2y

Age 10 years ago:

x- 10 = 3(y-10)

Substituting x in the second equation:

2y - 10 = 3y - 30
3y - 2y = 30 -10
y = 20

Then, finding x:

x= 2y
x= 2*20
x= 40

Answer: Uncle Jason is 40 and nephew Ralph is 20 years old

7 0

3 years ago

Can someone please help me please?

Iteru [2.4K]

Answer: D

Step-by-step explanation:

Proof see picture

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3 years ago

What is the value of x and the length of segment DE?

Mandarinka [93]

Answer:

Part 1) $x=6.6\ units$

Part 2) $DE=16.2\ units$

Step-by-step explanation:

Part 1) Find the value of x

we know that

Triangles CDF and FDE are similar

therefore

The ratio of its corresponding sides is proportional and its corresponding angles are congruent

$CD/FD=FD/DE$

$\frac{5}{9}=\frac{9}{2x+3} \\ \\5*(2x+3)=9*9\\ \\10x+15=81\\ \\10x= 81-15\\ \\10x=66\\ \\ x=6.6\ units$

Part 2) Find the length of DE

$DE=2x+3$

substitute the value of x

$DE=2(6.6)+3=16.2\ units$

8 0

3 years ago

Read 2 more answers

12. Karen baked chocolate chip cookies and sugar cookies. She baked 30 chocolate chip cookies and times as many sugar

sergeinik [125]

Answer:

150

Step-by-step explanation:

30=chocolate chip

120=sugar

30+120 = 150!

the answer is 150 not sure why its not one of the options

8 0

4 years ago

For the angle 7π/4, draw and upload a representation of the angle on the unit circle in the coordinate plane. Place the angle in

melomori [17]

Answer:

2eXz2

Step-by-step explanation:

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3 years ago