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topjm [15]
4 years ago
7

If 3t-7=5t then 6t =

Mathematics
2 answers:
dusya [7]4 years ago
8 0
3t-7=5t\\\\3t-5t=7\\\\-2t=7\\\\To\ obtain\ 6t\ on\ left\ side\ we\ multiply\ by\ -3\ both \ sides\\\\\-2t*(-3)=-3*7\\\\Solution:\ 6t=-21
dusya [7]4 years ago
7 0
3t-7=5t\ \ \ \ |add\ 7\ to\ both\ sides\\\\3t=5t+7\ \ \ \ \ \ |subtract\ 5t\ from\ both\ sides\\\\-2t=7\ \ \ \ \ |divide\ both\ sides\ by\ (-2)\\\\t=-3.5\\\\6t=6\times(-3.5)=-21

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A car travels at the rate of 350km in 5 hours.
leva [86]

Answer:

a.) 70 km per hour

b.) 245 km

Step-by-step explanation:

a.) Find how far the car can travel per hour by dividing:

\frac{350}{5}= 70

The car travels at a rate of 70 km per hour.

b.) Make an equation with <em>h</em> as hours and <em>d</em> as the distance the car can travel:

d=70h

Insert the hours:

d=70(3.5)

Simplify:

d=70*3.5\\d=245

At a rate of 70 km per hour, in 3.5 hours, the car can travel a total of 245 km.

3 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!
Kruka [31]

Answer:

Firstly, from the diagram we are given that the length of XB is congruent to BZ, and YC is congruent to CZ. Based on this information, we know that B is the midpoint of XZ, and C is the midpoint of YZ. This means that BC connects the midpoints of segments XZ and YZ. Now that we know this, we can use the Triangle Midsegment Theorem to calculate the length of BC. This theorem states that if a segment connects the midpoints of two sides of a triangle, then the segment is equal to one-half the length of the third side. In this scenario, the third side would be XY, which has a length of 12 units. Therefore, the length of BC = 1/2(XY), and we can substitute the value of XY and solve this equation:

BC = 1/2(XY)

BC = 1/2(12)

BC = 6

Step-by-step explanation:

Please support my answer.

6 0
3 years ago
What is the least natural number which when divided by 3,5,6,8,10 and 12 leaves in each case remainder 2 but when divided by 13
bazaltina [42]

Answer:

962

Step-by-step explanation:

MMM for step by step its kinda just plug and check

962/3 = 320 R2

962/6 = 160 R2

962/8 = 120 R2

962/10 = 96 R2

962/12 = 80 R2

and finally 962/13 = 74

4 0
2 years ago
two identical number cubes are shown in the picture. the edge length of the number cubes is 3 centimeters.
uysha [10]
Show a picture of it
4 0
3 years ago
A candle is 6 inches tall and burns at a rate of 1/2 inche per hour in linear model
worty [1.4K]
Y=mx+b
Y=-0.5x+6

X is time in hours
Hope I helped
4 0
3 years ago
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