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Anon25 [30]
3 years ago
7

I need help i'll give u Brainliest if u correct.

Mathematics
1 answer:
kifflom [539]3 years ago
3 0

Answer:

30$ sales tax, 460$ Total

Step-by-step explanation:

7% of 430 is 30.1, after rounding it’s 30, and 430 plus 30 is 460.

You’re welcome

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Graham drove 42 1/3 miles in 1 1/3 hours. A. How many miles did he drive in one hour?
Nonamiya [84]

change to  improper fractions

42 1/3

(3* 42 +1) /3 = 127/3

1 1/3 = (3*1 +1) /3 = 4/3

127/3 divided by 4/3

copy dot flip

127/3 * 3/4

127/4

31 3/4 miles per hour

He drove 31  3/4 miles in one hour

31 3/4 miles  1 mile

------------     = ------------

1 hours             x hour

using cross products

31 3/4 * x =1*1

x = 1/  127/4 (copy dot flip)

x = 1 * 4/127

x = 4/127

it takes 4/127 of 1 hour (approx .03 hours)

6 0
3 years ago
Find the point of intersection of the pair of straight lines<br> Y= -7x - 4<br> -y = 8x + 9
Aleonysh [2.5K]

Answer:

(-5,31)

Step-by-step explanation:

See image.

4 0
3 years ago
Plz help :( im trying to understand this but Idk how it works?
djyliett [7]

Answer:

LEFT

k + 3 = 20,

k = 17

RIGHT

3x + 5 = 32,

k = 9

Step-by-step explanation:

For the left side, you have k + 3 on one side equaling 20, so the equation is

k + 3 = 20

To solve is as follows

k + 3 = 20

  - 3    - 3

     k = 17

For the right side,

You have 3 x's and 5 1's right? Adding them together will equal 32 (Other side

So your equation is 3x + 5 = 32

To solve is as follows

3x + 5 = 32

    - 5     -5

      3x = 27

Dividing both sides by 9 we get x = 9

Reasoning; you want to cancel out everything with x so that you got x alone on one side.

Hope this helps, if not comment on this telling me which step I did that you dont understand and I'll explain it.

4 0
2 years ago
Plz help! Will give brainliest and points!
bekas [8.4K]
Option 3 is the answer
7 0
3 years ago
Can someone please answer. There is one question. There's a picture. Thank you!
barxatty [35]
Hello,

the answer is D (said Al Kashi)

6 0
3 years ago
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