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wariber [46]
4 years ago
15

Helena's sister is 10 years younger than three times her age. The

Mathematics
1 answer:
Norma-Jean [14]4 years ago
3 0

Answer:

79

Step-by-step explanation:

10 times 3 is thirty. Then add 30 + 49

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Beth needs 1 2/3 cups of sugar to make a cake and 2 1/4 cups to make a pie. How much sugar does she need to make both?
Brut [27]
Beth needs 3 11/12 cups
3 0
3 years ago
Read 2 more answers
Lisa and Marie are both on the track team. During practice, Lisa ran 10 laps around
Zigmanuir [339]

Answer:

Marie ran at a faster rate. It takes 27 minutes for Lisa to run 15 laps while it takes Marie 26.25 minutes to run 15 laps.

Step-by-step explanation:

18 ÷ 10 = 1.8 (Lisa's rate)

14 ÷ 8 = 1.75 (Marie's rate)

1.8 x 15 = 27 minutes (How long it takes for Lisa to run 15 laps)

1.75 x 15 = 26.25 (How long it takes for Marie to run 15 laps)

8 0
3 years ago
Find the measure of each missing angle
podryga [215]

Answer:

ok sooo....

Step-by-step explanation:

angle 1=180-118=62

angle2=62+95=157 180-157=23

angle3=180-23=157

angle4=so i think 23

angle5=and i think 62

ya sry i dont kno i tried might be wrng sry

5 0
3 years ago
One number is 8 times a first number. A third number is 100 more than the first number. If the sum of the three is 690, find the
mezya [45]
<h3>Given</h3>

Three numbers are n, 8n, and (100+n).

Their total is 690.

<h3>Find</h3>

the three numbers

<h3>Solution</h3>

n + 8n + (n+100) = 690

10n + 100 = 690 . . . . . . . simplify

10n = 590 . . . . . . . . . . . . subtract 100

n = 59

8n = 472

n +100 = 159

The three numbers are 59, 472, and 159.

6 0
3 years ago
What does 2.6x10 to the7 th power
ss7ja [257]
This is called scientific notation. To simplify, just do 10 to the 7th (1 with 7 zero's behind it) to get 10,000,000 (10 million) then multiply that by 2.6 to get your final answer:
26 million or 26,000,000


Just so you know, picking a brainliest answer gives YOU back points, and I kind of need the rank upgrade, as it's kind of embarrassing being Ambitious with more than 9 times the amount of points needed and around 7 times the number of brainliest answers.
6 0
3 years ago
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