3 years ago

1/2 of 5 for my Khan Academy answer

Mathematics

1 answer:

Tems11 [23]3 years ago

7 0

Answer:

...

Step-by-step explanation:

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Amy is 9 years older than her younger sister. if her younger sister is now 1 year old, how many years later will Amy be 4 times

Sholpan [36]

<h3>Answer:-</h3>

Age of Amy's younger sister=1year

☆Amy is 9 years older than her younger sister.

$\\ \sf\longmapsto Age\:of\:Amy=1+9=10years$

Let after x years Amy will be 4times old as her sister.

ATQ

$\\ \sf\longmapsto \dfrac{1+x}{9+x}=\dfrac{1}{4}$

Using cross multiplication

$\\ \sf\longmapsto 4(1+x)=1(9+x)$

$\\ \sf\longmapsto 4+4x=9+x$

$\\ \sf\longmapsto 4x-x=9-4$

$\\ \sf\longmapsto 3x=5$

$\\ \sf\longmapsto x=\dfrac{5}{3}$

$\\ \sf\longmapsto x=1.6$

$\\ \sf\longmapsto x=2(approx)$

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3 years ago

Libreng puntos ulet yeey

lora16 [44]

Yeet libreng pintos u

Lol

3 0

3 years ago

Together, teammates Pedro and Ricky got 2687 base hits last season. Pedro had 283 more hits than Ricky. How many hits did each

Vaselesa [24]

Answer:

Ricky hits 1202 base

Pedro hits = 1485 base

Step-by-step explanation:

Pedro + Ricky = 2687 hits

Let Ricky hits = x

So the Pedro hits will be = x + 283

( x + 283 ) + x = 2687

2 x + 283 = 2687

2 x = 2687 - 283

2 x = 2404

x = 1202

So the Ricky hits 1202 base

Pedro hits (1202 + 283) = 1485 base

4 0

3 years ago

Find the present value that will grow $1000 if the annual interest rate is 7.5% compounded quarterly for 5 years

Reil [10]

Answer:

911.3010934

Step-by-step explanation:

Formula:

A = P(1 + r/4)^n

In this case:

A = 100

P = ?

R = .075 (7.5%)

N = 5

---

1000 = P(1+.075/4)^5

1000 = P(1.01875)^5

1000 = P(1.097332163)

1000/1.097332163 = P

P = 911.301

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3 years ago

What is the volume?

Rus_ich [418]

The amount of space that a particular substance or object holds usually within a container.

8 0

3 years ago