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AleksandrR [38]
3 years ago
14

Solve the following linear system of equations using substitution.

Mathematics
1 answer:
suter [353]3 years ago
4 0

Answer:

(-1,-8)

Step-by-step explanation:

Did the assignment

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At the school Halloween dance. 85% of the students were present. If there are 765 students at the dance then how many total stud
marishachu [46]

Answer:

900 students

Step-by-step explanation:

We have, 85% × x = 765 or, 85/100 × x = 765. Multiplying both sides by 100 and dividing both sides by 85, we have x = 765 × 100/85. So x = 900. If you are using a calculator, simply enter 765×100÷85, which will give you the answer.

3 0
3 years ago
One half of a number added to two thirds of the number is 21. Find the number and show your work
Svet_ta [14]
The number would be 18.
Half of 18 = 9
Two thirds of 18 = 12
9 + 12 = 21
3 0
3 years ago
you only have to answer one, dont answer one thats been answered. also english please im a baby who wont learn new languages.
shepuryov [24]

Answer:

1. x=11

Step-by-step explanation:

2x+5=27

Subtract 5 from both sides

2x=22

Divide 2 from both sides

x=11

4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
LUCKY_DIMON [66]

Answer:  d

Step-by-step explanation: when you bring 3 into the square root, it becomes isqrt(63). when you apply i, it makes the number sqrt(-63)

pretty sure I did it right this time

7 0
3 years ago
Read 2 more answers
Which of the following units is incommensurable with kilograms? A.pounds B.ounces C.tons D.gallons
bekas [8.4K]

Answer:  D.gallons

Step-by-step explanation:

Kilogram is a unit of mass

Now, Pounds, Tons and Ounces are also units of mass.

But Gallons is a unit of volume, where 1 gal = 3.785 L

Then you never can represent an amount of mass using units for volume, which means that gallons is incommensurabe with kilograms.

the correct option is D

7 0
3 years ago
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