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MrRissso [65]
2 years ago
5

If −x−10y=2 is a true equation, what would be the value of 3x+30y?

Mathematics
1 answer:
larisa86 [58]2 years ago
5 0

Answer:

-6

Step-by-step explanation:

We are given that -x-10y=2 is a true equation so by multiplication property of equality, we can multiply everything by -3 on both sides. This gives us 3x+10y=-6

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3157 tshjb. Josh. Job n McJob
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An interior designer purchased 4 1/2 yards, 6 2/3 yards and 9 1/4 yards of fabric to make curtains How many yards of fabric did
ArbitrLikvidat [17]
Simply add up all.

4  1/2  +    6  2/3  + 9  1/4

(4 + 6 + 9) +    1/2  + 2/3 + 1/4

19                    6/12 + 8/12 + 3/12 = (6+8+3)/12 = 17/12

19      17/12
 
19       1 5/12

19 + 1  5/12

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20   5/12    yards was purchased.  
4 0
3 years ago
Read 2 more answers
Captain Max flies through Chicago 7 times each week and through Dallas 9 times each week. The expression 7w + 9w shows how many
Natali5045456 [20]

Answer:

16w

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Ft
Fofino [41]

Answer:

. We assume, that the number 260 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 260 is 100%, so we can write it down as 260=100%.

4. We know, that x is 6.75% of the output value, so we can write it down as x=6.75%.

5. Now we have two simple equations:

1) 260=100%

2) x=6.75%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

260/x=100%/6.75%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 6.75% of 260

260/x=100/6.75

(260/x)*x=(100/6.75)*x       - we multiply both sides of the equation by x

260=14.814814814815*x       - we divide both sides of the equation by (14.814814814815) to get x

260/14.814814814815=x

17.55=x

x=17.55

now we have:

6.75% of 260=17.55

Step-by-step explanation:

5 0
3 years ago
Can you help
snow_tiger [21]
Positive if I looked at graph correctly
8 0
3 years ago
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