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3 years ago

There are only red beads and green beads in a bag.

Mathematics

1 answer:

Vadim26 [7]3 years ago

5 0

Answer:

(a) 5/14

(b) 54 beads

Step-by-step explanation:

(a) Find the total number of units for red and green beads.

5 + 9 = 14

Since red beads is 5, it is 5/14.

(b) Find the units for red and green beads altogether.

5 + 9 = 14

14 units = 84 beads

Find one unit.

1 unit = 84 ÷ 14 = 6 beads

Since green beads have 9 units, find how many beads there are in 9 units.

9 units = 6 x 9 = 54 beads

(c) As there are 54 green beads and Susie wants to have twice as much green beads as red beads, she have to find how many red beads there are first.

Since red beads have 5 units, find how many beads there are in 5 units.

5 units = 6 x 5 = 30 beads

After that, since she wants twice, she have to find x2 of 30 beads which are red.

30 x 2 = 60

After that, find the remaining amount of green beads needing to make x2 of 30.

60 - 54 = 6 beads (green)

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julsineya [31]

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zvonat [6]

Mitra used 156 white tiles of 2x2 cm and 76 black tiles of 2x3 cm to form a pattern with an area of 1092 cm²

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Let x represent the number of white tiles and y represent the number of black tiles.

Area of white tiles = 2 cm * 2 cm = 4 cm²

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She used twice as many white tiles as black tiles. Hence:

x = 2y (1)

Also, the finished pattern was 1092 square centimeters in area. Hence:

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From both equations:

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3 0

2 years ago

Which of these is a simplified form of the equation 7y + 8 = 9 + 3y + 2y? 7y = 6 5y = 17 12y = 17 2y = 1

LekaFEV [45]

7y +8= 9+3y+2y

Combine like terms.

7y+8= 9+5y

Subtract 5y on both sides.

2y+8=9

Subtract 8 on both sides.

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I hope this helps!
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4 0

3 years ago

Read 2 more answers

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Gre4nikov [31]

Answer:

Problem 1) frequency: 160 heartbeats per minute, period= 0.00625 minutes (or 0.375 seconds)

Problem 2) Runner B has the smallest period

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Step-by-step explanation:

The frequency of the football player is 160 heartbeats per minute.

The period is (using the equation you showed above):

$Period = \frac{1}{frequency} = \frac{1}{160} \,minutes= 0.00625\,\,minutes = 0.375\,\,seconds$

second problem:

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$\frac{200}{60} = \frac{10}{3} \approx 3.33$ loops per minute

then the period is: 0.3 minutes (does one loop in 0.3 minutes)

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then the period is:

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8 0

3 years ago

PLEASE HELP!! THANKS!!

Xelga [282]

A) x • 3 + 4 = 22
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so since 18 is left, what times 3 = 18? thats 6. so
6 x 3 + 4 = 22
we can check.
18 + 4 = 22
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3 years ago