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UNO [17]
2 years ago
15

12(3+1)4 what is equivalent

Mathematics
1 answer:
ANEK [815]2 years ago
5 0

Answer:

12×1= 4×3

Step-by-step explanation:

12×1= 4×3 which means they are equal

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5 0
2 years ago
Alex the electrician needs 34 yards of electrical wire to complete his job. He has a coil of wiring in his workshop. The coiled
bogdanovich [222]

Answer: This coil will not be enough to complete the job.

Step-by-step explanation:

The circumference of the coil of wiring can be calculated with:

C=2\pi r

Where r is the radius and \pi=3.14

The radius can be calculated by dividing the diameter by 2. Then:

r=\frac{18in}{2}\\\\r=9in

Convert 9 inches to yards (1 yard=36 inches):

(9in)(\frac{1yd}{36in})=0.25yd

Substitute this radius into the formula:

C=2(3.14)(0.25yd)\\C=1.57yd

Since there are 21 circles of wire, you need to multiply C=1.57yd by 21:

C_T=(1.57yd)(21)=32.97yd

The coil has 32.97 yards of wire and Alex needs 34 yards, therefore, this coil will not be enough  to complete the job.

8 0
3 years ago
For the following system, use the second equation to make a substitution for y in the first equation.
Anuta_ua [19.1K]

Answer:

2x+3x+4=6

Step-by-step explanation:

You'd plug in the y-equation which is y=3x+4 into the placement of the y in the first equation 2x+y=6,

Which would then result in 2x+3x+4=6, which is the answer

8 0
3 years ago
Choose the answer that correctly solves the equation: 6 x 4 + 3 = ?
BlackZzzverrR [31]

Answer:

27

Step-by-step explanation:

because 6×4 is 24 and 24+3 =27

4 0
3 years ago
Read 2 more answers
Alonzo will participate in a charity walkathon.Her Mother will donate $10 for Alonzo participation plus and additional $2 for ea
kiruha [24]

Answer:

$40 total, $30 with just the mile amount.

Step-by-step explanation:

$10 + $2(15) = $40 total

6 0
3 years ago
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