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Fynjy0 [20]
3 years ago
11

1. True or false:

Mathematics
1 answer:
Nitella [24]3 years ago
4 0

1) true

2)false

Step-by-step explanation:

1) 5(3)+2(4) = 23

= 15+8=23

23=23

thus, (3,4) is solution for 5x + 2y = 23

2) 5(0)+2(4) =23

= 0+8 is not 23

thus, (0,4) is not solution for 5x + 2y = 23

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-6·f(-3)-5·g(-7)= please help
kicyunya [14]

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Hi my lil bunny!

❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

-6*f(-3)-5*g(-7)

Steps : <u>3</u>

Apply rule : - (-a) = a

= 6f * 3 + 5g * 7

Multiply the numbers : 6 * 3 = 18

= 18f + 5 * 7g

Multiply the numbers : 5 * 7 = 35

= 18f + 35g

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Have a great day/night!

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7 0
3 years ago
First use front end rounding to estimate the answer. Then multiply to find the exact answer.
iren2701 [21]

Answer:

Estimated answer = 57.0

Exact answer = 54.04

Step-by-step explanation:

Since 19.3 is lesser than 19.5, it will be rounded down to 19.0

Since 2.8 is greater than 2.5, it will be rounded up to 3.0

<u>Estimated multiplication</u>

19.0 * 3.0 = 57.0

<u>Actual multiplication</u>

19.3 * 2.8 = 54.04

4 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP<br> You roll a 6 sided number cube. What is the probability of rolling a 4?
djverab [1.8K]
That answer would be 1.5 just divide 6/4
6 0
3 years ago
Read 2 more answers
What is the velue of the 3 in 630
BARSIC [14]
The answer is 30. The three is in the tens place, representing 30.
5 0
3 years ago
A car dealership sells SUVs and passenger cars . For a recent year, 80 more SUVs were sold than passenger cars. If a total of 51
MAVERICK [17]

Answer:

295 SUVs were sold, and 215 passenger vehicles.

Step-by-step explanation:

Let s and p represent the number of SUVs and p the number of passenger cars.  

Then s = p + 80 and s + p = 510.

Substitute p + 80 for s in the second equation, obtaining:

p + 80 + p = 510, or:

2p = 430

Dividing both sides by 2 isolates p:  p = 215.

Since s = p + 80, we add 80 to 215 here, obtaining s = 295.

295 SUVs were sold, and 215 passenger vehicles.

3 0
3 years ago
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