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3 years ago

What is 2a/3 + 1/5=7/6 for a equation ? what does a represent?

2 answers:

8 0

2a/3 + 1/5=7/6

2a/3=0.96666.... (subtract 1/5 to both sides)

2a=2.9 ( multiply by 3 to both sides)

a=1.45 ( divide by 2 to both sides)

vladimir1956 [14]3 years ago

4 0

We have duch equation 2a/3+1/5=7/6. /-1/5 2a/3=7/6-1/5 2a/3=35/30-6/30 2a/3=29/30. /*3 2a=29*3/30 2a=87/30. /:2 a=87/60 a=1 27/60 a=1 9/20 Its the result

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Mrs. Williams needed to make 4 1/2 of fruit salad for a class party.

ziro4ka [17]

Answer:

strawberry=7/8

Step-by-step explanation:

treat strawberry as x

add on proportions

1 1/8+ 3/4+ 1 3/4 + x = 4 1/2

(9+6+14)/8 + x = 9/2

29/8 +x = 9/2

x= 9/2 - 29/8

x= (36-29)/8

x=7/8

3 0

3 years ago

Your food costs are 2250. Your total food sales are 25000. What percent of your food sales do the food costs represent?

liberstina [14]

To get this percentage, divide costs by total food sales

2250 / 25000 = 0.09

then multiply by 100 to get the % = 9%

6 0

3 years ago

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At noon the minute and the hour hands overlap. When will it happen next?

neonofarm [45]

to be exact 1:05 p.m is the next time it will happen

6 0

3 years ago

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Select 2 strategies that we can use to add 115+497

Gemiola [76]

Answer:

B. Add 115+500 then subtract 3

C. Add 112+500

Step-by-step explanation:

Any strategy that gives a sum of 612 will work. Strategy A gives a sum of 602, so is not useful.

The appropriate choices are B and C.

B: 115 +497 = 115 +(500 -3) = (115 +500) -3

C: 115 +497 = 115 +497 -3 +3 = (115 -3) +(497 +3) = 112 +500

6 0

3 years ago

What is the equation?

zavuch27 [327]

Answer:

$\displaystyle 5x + 6y = 72\:or\:y = -\frac{5}{6}x + 12$

Step-by-step explanation:

Perpendicular equations have OPPOCITE MULTIPLICATIVE INVERCE RATE OF CHANGES [SLOPES], so 1⅕ becomes −⅚, and we move forward with plugging the information into the Slope-Intercept formula:

$\displaystyle -8 = -\frac{5}{6}[24] + b \hookrightarrow -8 = -20 + b; 12 = b \\ \\ \boxed{y = -\frac{5}{6}x + 12}$

To write this in Linear Standard Form, perfourm he following:

y = −⅚x + 12

+ ⅚x + ⅚x

___________

⅚x + y = 12 [We cannot leave the equation this way, so multiply the equation by the denominatour to eradicate the fraction.]

6[⅚x + y = 12]

$\displaystyle \boxed{5x + 6y = 72}$

I am joyous to assist you at any time.

7 0

2 years ago