All categories

2 years ago

4. Sandra has 35% of the money she needs. She has $105. How much more money does she need? Write the equation and solve.

Mathematics

1 answer:

guajiro [1.7K]2 years ago

5 0

Answer:

36.75

Step-by-step explanation:

First is turn the percent into a decimal which would be 0.35.

Then multiply 0.35 with 105

Finally this would equal to 36.75

Note: Hope I got it right, if I didn't I am very sorry this is all I can really do. If I did get it wrong please comment and I'll try again.

You might be interested in

Karen is seven years older than suzanne.Four years ago,karen was twice as old as suzanne was.How are they now?

EleoNora [17]

$K-Karen\ age\\S-Suzanne\ age\\K-4-Karen\ age\ 4\ years\ ago\\S-4-Suzanne\ age\ 4\ years\ ago\\\\ \left\{\begin{array}{ccc}K=S+7\\K-4=2(S-4)\end{array}\right\\\left\{\begin{array}{ccc}K=S+7&(1)\\K-4=2S-8&(2)\end{array}\right\\\\subtitute\ (1)\ to\ (2):\\\\(S+7)-4=2S-8\\S+7-4=2S-8\\S+3=2S-8\ \ \ \ |subtract\ 3\ from\ both\ sides\\S=2S-11\ \ \ |subtract\ 2S\ from\ both\ sides\\-S=-11\\\boxed{S=11}$

$Put\ the\ value\ of\ S\ to\ (1):\\\\K=11+7\\\boxed{K=18}\\\\\left\{\begin{array}{ccc}K=18\\S=11\end{array}\right\\\\Answer:\ Karen\ does\ 18\ years\ and\ Susanne\ does\ 11\ years.$

3 0

3 years ago

Read 2 more answers

Write an equation for an ellipse centered at the origin, which has foci at (0,\pm\sqrt{63})(0,± 63 )left parenthesis, 0, comma

steposvetlana [31]

Answer:

$\frac{x^{2} }{4312 } + \frac{y^{2} }{8281 }$

Step-by-step explanation:

Since the foci are at(0,±c) = (0,±63) and vertices (0,±a) = (0,±91), the major axis is the y- axis. So, we have the equation in the form (with center at the origin) $\frac{x^{2} }{b^{2} } + \frac{y^{2} }{a^{2} }$ .

We find the co-vertices b from b = ±√(a² - c²) where a = 91 and c = 63

b = ±√(a² - c²)

= ±√(91² - 63²)

= ±√(8281 - 3969)

= ±√4312

= ±14√22

So the equation is

$\frac{x^{2} }{(14\sqrt{22}) ^{2} } + \frac{y^{2} }{91^{2} } = \frac{x^{2} }{4312 } + \frac{y^{2} }{8281 }$

8 0

3 years ago

Ella uses 3 inches of ribbon for each key chain she makes. How many key chains can she make with 4 yards of ribbon?

Marina CMI [18]

Answer:

Step-by-step explanation:

8 0

2 years ago

Find the rate of the changes the first two hours of use after unplugging her laptop

Alex17521 [72]

Answer:

Step-by-step explanation:

3 0

3 years ago

Write 20.65 in expanded notation

Zinaida [17]

Answer:

2 * 10 + 6 * .1 + 5 * .01

Step-by-step explanation:

7 0

2 years ago

4. Sandra has 35% of the money she needs. She has $105. How much more money does she need? Write the equation and solve.​

4. Sandra has 35% of the money she needs. She has $105. How much more money does she need? Write the equation and solve.