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3 years ago

Can you help me with this question please

Mathematics

1 answer:

ArbitrLikvidat [17]3 years ago

8 0

Answer:

51 litres

Step-by-step explanation:

$\frac{1}{4}$ of 68 litres = $\frac{68}{4}$ = 17 litres

The tank holds 68 litres, thus

68 - 17 = 51 litres required to fill the tank

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100m world record was completed at an average speed of 37.6 km/h. work out this speed in meters per second?

pickupchik [31]

Step-by-step explanation:

1 km = 1000 m

1 hour = 3600 s

so,

37.6 km = 37,600 m (still per hour or per 3600 s).

in 1 second now that is

37600/3600 = 10.44444444... m/s

4 0

2 years ago

A TV has a listed price of $885.98 before tax. If the sales tax rate is 8.5%, find the total cost of the TV with sales tax

Butoxors [25]

Answer:

net amount $885.98 tax at 8.5% is $75.31 gross amount is $961.29

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3 years ago

What is the product of (-a + 3)(a + 4)?

spayn [35]

Answer: The product of (-a + 3)(a + 4) is: -a^2-a+12

Step-by-step explanation:

(-a+3)(a+4) = -a*a-a*4+3*a+3*4

=-a^{2} -4a+3a+12

now just simply combine..

=-a^2-a+12

the answer is -a^2-a+12

8 0

3 years ago

what is the solution of the system of equations? y = –2x 8 y = x – 4 a. (–1.33, –5.33) b. (4, 0) c. (0, 4) d. (–12, 32)

IRISSAK [1]

Y = -2x + 8 = x - 4
x + 2x = 8 + 4
3x = 12
x = 4
y = -2(4) + 8 = -8 + 8 = 0
Solution is (4, 0)

3 0

3 years ago

Read 2 more answers

aalyn [17]

Answer:

The attachment shows ΔBAC ~ ΔBDA

Step-by-step explanation:

You want segment AB to be part of two similar, but not congruent, triangles. One way to do that is to make AB the hypotenuse of one triangle and the leg of another.

It is convenient to construct these triangles using point M as the arbitrary midpoint of the hypotenuse of the larger triangle. (We don't know the coordinates of M—we just know it is on the perpendicular bisector of AB.) BC is a diameter of circle M, and AD is the altitude of ΔABC.

8 0

3 years ago