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Delvig [45]
3 years ago
7

Sally and Lucy had an equal amount of money each. After Sally spent $15 and Lucy spent $24, the ratio of Sally’s money to Lucy’s

money was 4:3. How much money did each girl have at first?
Mathematics
1 answer:
DaniilM [7]3 years ago
8 0

Answer:

27

Step-by-step explanation

Sally = 4 x 3 = 12(left) + 15(spent) = 27

Lucy = 24(spent) + 3(left) = 27 (we dont multiply this part bc Lucy spent 9 more dollars than Sally, 3 x 3 is 9 which equals the difference)

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Ocean currents have a direct effect on climate primarily by an interaction of which two systems?
olasank [31]

Ocean Currents via their interaction with the <u>Atmosphere </u>and the <u>Hydrosphere </u>influence climatic behavior.

<h3>What are Ocean Currents?</h3>

This is a continuous directional movement of seawater driven by gravity, wind, and water density.

This movement is predictable and can move vertically and horizontally.

Horizontal movements are called currents while vertical movements are called upwellings and downwelling.

See the link below for more about Ocean Currents:

brainly.com/question/11847687

4 0
2 years ago
What are the coordinates of R'?<br> OR'(4-1)<br> OR'(-4,1)<br> OR (1.4)<br> OR'(-1,-4)
Lynna [10]

Answer:

OR' (-4,1)

Step-by-step explanation:

Answer is OR' (-4,1)

Hope it helps!

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5 0
3 years ago
A+b+c=m,a2+b2+c2=n,a3+b3=p3. If c=0 then prove that m3+2p3=3mn
miskamm [114]

Answer:

raja don mein hoo kya problem he

4 0
3 years ago
Read 2 more answers
Simplify (1+3)2-10÷2<br> what the solution?
Sauron [17]

Answer:

3

Step-by-step explanation:

(1+3)2-10÷2

1+3=4

4x2=8

10÷2=-5

8-5=3

6 0
3 years ago
M/PQR if mzPQR = (10x 7), m/RQT = 5x°, and m/PQT=(4x+6).
vodomira [7]

The measure of ∠PQR will be 123° .

Interior Angles of an Angle:

An interior of an angle is a line that separates an angle into two angles. If BD is the interior of an angle ABC then the measure of the angle ABC is the sum of both the angles.

∠ABC = ∠ABD +∠DBC

We can divide an angle into many interior parts or angles.

If we have an angle and there are many interiors that divides the angle into many parts than the sum of all the interior angles is equal to the measure of the original angle.

If we have D and E are the two interiors of ∠ABC then ,

∠ABC =∠ABD + ∠DBE + ∠EBC

Given that point T is in the interior of ∠PQR  and ∠PQR =10x-7

                                                                                 ∠RQT =  5x°

                                                                              ∠PQT=(4x+6) .

Since T is the interior of  ∠PQR ,

∠PQR =      ∠PQT + ∠RQT

10x-7 = 4x + 6 + 5x

10x-7 = 9x + 6

x = 13°

So from the equation(1)-

∠PQR = 10(13) - 7

∠PQR = 123°

So ∠PQR = 123° .

To learn more on interior angles go here :

brainly.com/question/24966296

#SPJ9

6 0
1 year ago
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