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3 years ago

Figure out equation.

Mathematics

2 answers:

krok68 [10]3 years ago

6 0

Answer:

5+10-13=12

Step-by-step explanation:

WARRIOR [948]3 years ago

5 0

Answer:

Blue=5, Red=10, Yellow=13, Question=2

Step-by-step explanation:

26/2=13, therefore 13 minus something is 3, which is 10. Since red is 10, something add 10 equals 15, that would be 5. Blue is 5 add 10 is 15, then minus 13 is 2

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Simplify. <br><br>(11 + (+4 + 1)2] - 11 1-1 - 21

Sergeu [11.5K]

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3 years ago

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

Tanya [424]

Answer:

$r=0.05$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

A is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=3\ years\\ P=\$3,000\\I=\$450\\r=?$

substitute in the formula above

$450=3,000(3r)$

solve for r

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$r=450/9,000$

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4 years ago

Logan drove from New Orleans to Nashville to visit friends. Logan drove the speed

Nata [24]

Answer:

540 miles

Step-by-step explanation:

60 miles per 1 hour

120 per 2 hours... etc.

multiply 60 and 9 to get 540

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4 years ago

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4 years ago

Read 2 more answers

In how many year the interest will became equal to the principal is rs.1200 is deposited at the rate of 25% in a bank

mrs_skeptik [129]

Given:

Principal = Rs. 1200

Rate of interest = 25%

To find:

The time in which the interest will became equal to the principal.

Solution:

We have,

$P=1200$

$r=\dfrac{25}{100}$

$r=0.25$

If interest is equal to the principal, then

$Amount=Principal+Interest$

$Amount=1200+1200$

$Amount=2400$

The formula for amount is:

$A=P\left(1+r)^n$

Substituting $A=2400, P=1200, r=0.25$ in the above formula, we get

$2400=1200(1+0.25)^n$

$\dfrac{2400}{1200}=(1.25)^n$

$2=(1.25)^n$

Taking log on both sides, we get

$\log2=\log(1.25)^n$

$\log2=n\log(1.25)$ $[\because \log a^b=b\log a]$

$\dfrac{\log2}{\log(1.25)}=n$

$n\approx 3.11$

Therefore, the interest will became equal to the principal in about 3.11 years.

4 0

3 years ago