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Serhud [2]
3 years ago
14

WILL MARK BRAINLIEST

Mathematics
1 answer:
Klio2033 [76]3 years ago
7 0

The answer is 6.30 seconds, you can find this by graphing the equation. you can use desmos for help graphing digitally if you have to.

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I need help with problem
topjm [15]
D + q = 40
.10d +.25q= $7.75

d +q = 40
d =40-q
.10(40-q) +.25q= $7.75
4 - .10q + .25q =7.75
4 +.15q =7.75
4-4 +.15q =7.75-4
.15q= 3.75
.15q/.15 = 3.75/.15
q = 25

d =40-25
d = 15

Check
.10(15) +.25(25)= $7.75
1.5+6.25=7.75
7.75=7.75
8 0
3 years ago
Write an expression in expanded form that is equivalent to 3(7d + 4e).
Sergeu [11.5K]

Answer:3*(7*d)+(4e)=3*7d+4e

Step-by-step explanation:

8 0
3 years ago
Please answer as soon as possible! Brainliest and lots of points! Please give good details and make sense! Thanks! (See attachme
professor190 [17]

Answer:

no because they did not multiply the whole numbers and just multiplied the powers

Step-by-step explanation:

6 0
3 years ago
Determine whether the ratios are equivalent.<br><br> 3 : 10 and 9 : 25<br><br> Please Help!!
Ilia_Sergeevich [38]

Answer:

They aren't

Step-by-step explanation:

9/25 / 3= 3/8.3

3/10 x 3 = 9/30

none of those equal to each other

7 0
3 years ago
Marimar buys and old mirrors for $45:00 . She spend $5:00 to fix and paint it . Then she sell the mirror for $78:00 . What is ma
jolli1 [7]

Answer:

28 dollars

Step-by-step explanation:

$45+$5= $50 which is how much she spent it total

then she sells it for $78

so her profit would be $28

5 0
3 years ago
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