A dime has the same value as 10 pennies. Marley brought 290 penniesto the bank. How many dimes did marley get?

Help solving this math homework

Nostrana [21]

8.

33 = 2y + 1 + y - 1

Add the 1 and -1

Add the y and 2y

33 = 3y

11 = y

9, AQ = 2y + 1

2(11) + 1

22 + 1

23

AQ = 23

10, QX = y - 1

QX = 11 - 1

10

QX = 10

11. 62 = 3x - 4 + 3x - 4

Add -4 and -4

Then add 3x + 3x

62 = 6x

Divide 62 by 6x

x = 11 2/3

AB = 3x - 4

3 (11 2/3) - 4

3 * 11 2/3 = 35

35 - 4 = 31

AB = 31

Both sides are equal, so BC also equals 31

12. 206 = 3x - 4 + 3x - 4

206 = 6x

x = 34 1/3

AB = 3x - 4

AB = 3(34 1/3) - 4

AB = 103

Because AB and BC are the same, BC also equals 103.

5 0

4 years ago

Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometrically similar. What effect d

miskamm [114]

B isssssssssss daaaaaa wnswereeer

5 0

3 years ago

Monica uses 3 tablespoons of milk in her custard recipe. The ratio of tablespoons to fluid ounces is 2 : 1. How many fluid ounce

Likurg_2 [28]

Hola, me llamo Sarah y creo que deberías prestar atención en el colegio para que lo entiendas mejor

7 0

3 years ago

Solve the problem of exponential growth. In 1985 an antique automobile club had 23,000 members. Since then its membership has gr

Helen [10]

Answer:

$127,000\ members$

Step-by-step explanation:

In this problem we have an exponential function of the form

$f(x)=a(b)^{x}$

where

a is the initial value

b is the base

The base is equal to

b=1+r

r is the average rate

In this problem we have

a=23,000 members

r=5%=5/100=0.05

b=1+0.05=1.05

substitute

$f(x)=23,000(1.05)^{x}$

x ----> is the number of years since 1985

How many members will there be in 2020?

x=2020-1985=35 years

substitute in the function

$f(x)=23,000(1.05)^{35}=126,868\ members$

Round to the nearest thousand

$126,868=127,000\ members$

4 0

3 years ago

2 2/5 multiplied by 2 multiplied by 3 1/5

goldfiish [28.3K]

Answer:

15 9/25

Step-by-step explanation:

1 Convert 2\frac{2}{5}2

5

2

to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a

c

b

=

c

ac+b

.

\frac{2\times 5+2}{5}\times 2\times 3\frac{1}{5}

5

2×5+2

×2×3

5

1

2 Simplify 2\times 52×5 to 1010.

\frac{10+2}{5}\times 2\times 3\frac{1}{5}

5

10+2

×2×3

5

1

3 Simplify 10+210+2 to 1212.

\frac{12}{5}\times 2\times 3\frac{1}{5}

5

12

×2×3

5

1

4 Convert 3\frac{1}{5}3

5

1

to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a

c

b

=

c

ac+b

.

\frac{12}{5}\times 2\times \frac{3\times 5+1}{5}

5

12

×2×

5

3×5+1

5 Simplify 3\times 53×5 to 1515.

\frac{12}{5}\times 2\times \frac{15+1}{5}

5

12

×2×

5

15+1

6 Simplify 15+115+1 to 1616.

\frac{12}{5}\times 2\times \frac{16}{5}

5

12

×2×

5

16

7 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}

b

a

×

d

c

=

bd

ac

.

\frac{12\times 2\times 16}{5\times 5}

5×5

12×2×16

8 Simplify 12\times 212×2 to 2424.

\frac{24\times 16}{5\times 5}

5×5

24×16

9 Simplify 24\times 1624×16 to 384384.

\frac{384}{5\times 5}

5×5

384

10 Simplify 5\times 55×5 to 2525.

\frac{384}{25}

25

384

11 Convert to mixed fraction.

15\frac{9}{25}

15 9/25

8 0

3 years ago

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