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LiRa [457]
4 years ago
12

Draw to show 55 three different

Mathematics
1 answer:
Kamila [148]4 years ago
4 0
Addition or something else i think 11x 5
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Y-x=17<br> y = 4X+2<br> Help me out rn!!!!
Lena [83]
X=5 because you plug in the y into the equation y-x=17
3 0
3 years ago
Read 2 more answers
The time required to complete a job varies inversely as the number of people working. it took 4 hours for 7 electricians to wire
Solnce55 [7]
Let's assign variables

The time required to <span>wire a building: y
</span>
The number of electricians <span>to have done this job: x

</span>
<span>y varies inversely as x

so that:
y= k\frac{1}{x}
where  k is the proportional constant


To calculate the value of k, plug in the values of x and y:
x=7
y=4

4=k (\frac{1}{7}) \\~\\k=28


Now, write down the relation between x and y:
y=28x


"</span><span>how long would it have taken 3 electricians to have done the job?"
x=3
Let's find out y:
y=(28) \frac{1}{3} = \frac{28}{3} =9 \frac{1}{3} =9.333333~~hr

So it would take 9 hours and 20 minutes to have this job done.

</span><span />
3 0
3 years ago
Evaluate 2x2 - 1 when x = 3.
Charra [1.4K]

Hello!

2.x^2 - 1 = 2.3^2 - 1 = 2.9 - 1 = 18-1 = 17

Good luck!

4 0
3 years ago
Read 2 more answers
1) Sarah orders bracelets from a catalog. The bracelets cost $4 each and the shipping charge is $3. If Sarah
Fittoniya [83]
She can only buy two since the bracelet and shipping is $7 together so you can buy two $14
3 0
3 years ago
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To visit his grandmother, Michael takes a motorcycle 3.853.853, point, 85 kilometers and a horse 3.323.323, point, 32 kilometers
liq [111]

Answer: 7.17\ kilometers

Step-by-step explanation:

<h3> The exercise is: "To visit his grandmother, Michael takes a motorcycle 3.85 kilometers and a horse 3.32 kilometers. In total, the journey takes 50.54 minutes. How many kilometers is Michael's journey in total?"</h3>

To solve this exercise you must pay attention to the data given.

According to the information provided in the exercise, Michael's journey is divided into two parts:

Part 1: 3.85\ kilometers (Traveling in a motorcycle)

Part 2: 3.32\ kilometers (Traveling in a horse)

Based on the given data, you can conclude that the the total distance in kilometers of  Michael's journey to the house to his grandamother, is the sum of those distances (3.85\ kilometers and 3.32\ kilometers)

Therefore, you need to add them in order to solve the exercise.

So, You get that the result is:

Total=3.85\ kilometers+3.32\ kilometers\\\\Total=7.17\ kilometers

3 0
4 years ago
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