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2 years ago

Jack's family went out to dinner at a diner. The total bill was $78.99. The

Mathematics

2 answers:

puteri [66]2 years ago

6 0

Answer:

The tax was 5.13

Step-by-step explanation:

Take the amount and multiply by the tax rate

78.99 * 6.5 %

Change to a decimal

78.99 * .065

Round to the nearest cent

5.13

Annette [7]2 years ago

5 0

Answer:

the tax was 5.13

Follow me if right.... I copied from the most smartest person on brainly in my opinion.. Which is Wegner with the scooby doo pfp

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A multiplication problem is shown 789 times what equals 8679 what the missing number

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Answer:

789

Step-by-step explanation:

8679/789 = 11

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Simplify 143.87x34.65x87.78+12.63-19.63 to the nearest tenth.

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Step-by-step explanation:

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2 years ago

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There are 112 seats in the school auditorium there are 7 seats in each row there are 70 people seated filling up full rows of se

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3 years ago

Please help logarithms!

nlexa [21]

Given:

$\log_34\approx 1.262$

$\log_37\approx 1.771$

To find:

The value of $\log_3\left(\dfrac{4}{49}\right)$ .

Solution:

We have,

$\log_34\approx 1.262$

$\log_37\approx 1.771$

Using properties of log, we get

$\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_349$ $\left[\because \log_a\dfrac{m}{n}=\log_am-\log_an\right]$

$\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_37^2$

$\log_3\left(\dfrac{4}{49}\right)=\log_34-2\log_37$ $[\log x^n=n\log x]$

Substitute $\log_34\approx 1.262$ and $\log_37\approx 1.771$ .

$\log_3\left(\dfrac{4}{49}\right)=1.262-2(1.771)$

$\log_3\left(\dfrac{4}{49}\right)=1.262-3.542$

$\log_3\left(\dfrac{4}{49}\right)=-2.28$

Therefore, the value of $\log_3\left(\dfrac{4}{49}\right)$ is $-2.28$ .

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2 years ago

Mrs.smith earns $3500 a month. She saves $280 a month. Savings is what percent of her income?

arlik [135]

Answer:

3500 280

Step-by-step explanation:

280/3500

280 divided by 3500 times 100 (type this into a calculator)

its 8 her savings are 8 percent of her income

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2 years ago