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Karo-lina-s [1.5K]
3 years ago
9

If x varies directly as y and x= 18 when y =3 find x when y=7

Mathematics
1 answer:
denpristay [2]3 years ago
5 0

Answer:

42

Step-by-step explanation:

x = Ky

18 = K(3)

K = 18/3 = 6

x = 6y

x = 6(7) = 42

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The bases of the trapezoid are 6 and 10. The height is 4. Find the area.
kari74 [83]
<h2>Answer:</h2>

b. \ \boxed{32 \sq. \ units}

<h2>Step-by-step explanation:</h2>

A trapezoid is a quadrilateral where at least one pair of opposite sides are parallel. In a trapezoid, the both parallel sides are known as the bases of the trapezoid. So we have two bases, namely, b_{1}\,and\,b_{2}. Also, the height H of the trapezoid is the length between these two bases that's perpendicular to both sides. So the area of a trapezoid in terms of of b_{1},b_{2}\:and\:H is:

A=\frac{(b_{1}\text{+}b_{2})h}{2}

Since:

b_{1}=6, \ b_{2}=10, \ and \ H=4

The area is:

A=\frac{(6\text{+}10)4}{2}=\boxed{32 \sq. \ units}

6 0
3 years ago
This is embarrassing...help❤️❤️❤️❤️
BaLLatris [955]

Answer:

Step-by-step explanation:

P(green) is asking what are the chances that if your stuck your hand into the bag and grabbed a marble that it would be green. There are 3 green, 2 blue, 1 red, and 1 white marble for a total of 7 marbles. If you pull out a marble without looking you have 3 chances of 7 that it will be green. So

10. 3/7 or 3:7

Do we even have any yellow marbles? Not that I can see, so if there isn't a yellow to pull out, your chances of pulling one out is 0. So

11. 0/7 or 0

Since there are 3 green and 1 red, which is a total of 4 marbles, we have 4 out of 7 chances that the marble we pull is red or green. So

12. 4/7 or 4:7

7 0
3 years ago
In the figure, a∥e , m∥n , and m∠2 = 117°.
Blizzard [7]
<span> a∥e , m∥n , and m∠2 = 117°
<5 = 180  - <2
<5 = 180 - 117
<5 = 63

answer
</span><span>63°</span>
3 0
3 years ago
Read 2 more answers
A) Divide the numbers 1 to 8 by 9. Observe the decimals and di
bearhunter [10]

Answer:

12345678/9

= 1.371746...

12345678910/11

=1.12233446......

other i dont know

3 0
2 years ago
If the perimeter of one face of a cube is 22.4 cm, determine, to the nearest hundredth, its lateral surface area. *
mr Goodwill [35]
22.4/4 = 5.6 cm

5.6^2 = 31.36 cm^2 per side

Since the later surface area only counts for 4/6 sides on the cube, (31.36)(4) = 125.44 cm^2
5 0
3 years ago
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