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gayaneshka [121]
3 years ago
7

7(6+d)=49 Solve for d. A:d=7 B:d=-1 C:d=-7 D:d=1

Mathematics
1 answer:
Elan Coil [88]3 years ago
3 0

Answer: d = 1

Step-by-step explanation:

First distribute the 7 to each term of (6 + d) = 42 + 7d = 49 now subtract 42 from both sides which = 7d = 7. Divide by 7 = 7d/7 = 7/7 = d = 1

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Leah has two savings accounts with balances totaling $8,000. She withdrew 15% from one and
DedPeter [7]

Answer:930 Hope this Helps :D

Step-by-step explanation:

For the given problem:

Let the balances of the saving accounts be (x) and (y)

Leah has two savings accounts with balances totaling $8,000

so,

x+y=8000 (1)

She withdrew 15% from one and 40% from the other. If she has $6,350 remaining in the accounts

So, The remaining from the accounts will be (1 - 15%) and ( 1 - 40%)

that will give the decimals: 0.85 and 0.6

so, we can write the following equation:

0.85x+0.6y=6350 (2)

Now, solve the equations (1) and (2) to find (x) and (y)

From equation (1)

y=8000-x (3)

Substitute with (y) from equation (3) into equation (2)

0.85x+0.6*(8000)-x =6350

Now solve the equation

0.85x+0.6*8000-0.6x=6350

0.85x-0.6+4800+6350

0.25x=6350-4800

0.25x=1550

x=6200

Substitute with (x) into equation (3) to find (y)

y=8000-6200=1800

So, the larger account = x = 6200

and the smaller account = y = 1800



Now, we will answer the question, how much money did she withdraw from the account with the larger balance?

so, the answer will be: 15% of x = 0.15 * 6200 = 930



So, the answer will be $930

6 0
2 years ago
If ΔFGH ≅ ΔIJK, which segment is congruent to FH? PLS HELP PLS PLS PLS
Mazyrski [523]

Answer:

IK

Step-by-step explanation:

If you draw out the triangles it is easier to see

8 0
3 years ago
Find the greatest common factor of the following monomials.<br> 25x^5 20x^6
klio [65]
1x25=25
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x^5 is the biggest you can take out of x^5 and x^6 and 5 is the biggest number you can take out of 20 and 25

5m^5
8 0
3 years ago
The base of a triangle is seven less than twice its height. If the area of the triangle is 102 cm2, find the length of the base.
Shalnov [3]

Answer:

195

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
At an amusement park, a group of 154 people wants to ride the roller coaster. If each car on the roller coaster holds 9 people,
Vsevolod [243]

Answer:

1

Step-by-step explanation:

you simply divide 154 by 9, get around 17.1. 17 is the closest whole number answer, so 17*9 is 153.

do 154-153, you get 1.

not the best explaination but i hope it helps.

6 0
3 years ago
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