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erica [24]
2 years ago
15

3x-y=7 2x+3y=12 how do you solve?

Mathematics
1 answer:
Dvinal [7]2 years ago
6 0

Step-by-step explanation:

2x+3(-7+3x)=12

x=3

y=-7+3x3

y=2

(x,y)=(3,2)

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76 div 4<br><br> a)15<br><br> b) 8<br><br> c) 19<br><br> d) 0<br><br> Explain
Sunny_sXe [5.5K]

Answer:

C. 19.  

Step-by-step explanation:

Let's find the answer.

Step 1:  divide the first number of 76, which is 7, by 4 and find the integer part.

7/4=1.75, so the integer part is 1.

Step 2: subtract from 7 the (integer part times 4)

7-(1*4)=3

Step 3: put toether the result (3) and the second number of 76, which is 6, so the result is 36.

Step 4: find how many times we need to add 4s to reach 36, so:

4+4+4+4+4+4+4+4+4=36 which means that:

36/4=9

Step 5: put together the two resulted numbers calculated in step 1, which is 1, and step 4, which is 9:

1 and 9 giving 19, so the answer is:

76/4=19.

In conclusion the answer is C. 19. 

6 0
2 years ago
Ill mark brainlist plss help
mojhsa [17]

Answer:

w=20

Step-by-step explanation:

Solve for  w  by cross multiplying.

6 0
3 years ago
Read 2 more answers
in a roulette wheel there are 38 numbered slots: 36 slots are the numbers 1 through 36 and the remaining two slots are 0 and 00.
frez [133]

roulette consists in placing a small ball in a roulette wheel, Probability (Roulette ball not landing on red) = 10 / 19

The probability of an event can be calculated by probability formula by simply dividing the favorable number of outcomes by the total number of possible outcomes

Given:

Number of total slots = 38

Number of red slots = 18

Number of black slots = 18

Number of green slots = 2

Find:

Probability (Roulette ball not landing on red)

Computation:

Probability (Roulette ball not landing on red) = 1 - Probability (Roulette ball landing on red)

Probability (Roulette ball not landing on red) = 1 - (18 / 38)

Probability (Roulette ball not landing on red) = 20 / 38

Probability (Roulette ball not landing on red) = 10 / 19

To learn more Probability

Visit : brainly.com/question/17212536

#SPJ4

7 0
1 year ago
PLZ HELP A WEEB OUT!!! WILL GIVE BRAINLIST
insens350 [35]
She used the diameter instead of the radius :) instead of cubing 8 she should’ve cubed 4
3 0
2 years ago
Help meh with this lol
egoroff_w [7]

Answer:

D

Step-by-step explanation:

Integers: a WHOLE number that can be positive, negative or zero

-22 is a negative whole number

Rational number: Any number that can be written as a fraction with integers.

-22/1 can be the fraction

3 0
3 years ago
Read 2 more answers
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