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3 years ago

MP.1 Make Sense and Persevere Gary has $4. Mary has twice as many dollars

Mathematics

1 answer:

Andreas93 [3]3 years ago

5 0

Answer:

$16

Step-by-step explanation:

Gary has $4. (given)

Mary has twice as many dollars as Gary, so Mary has 2×$4 = $8.

Larry has 4 fewer dollars than Mary, so Larry has $8 -4 = $4.

Gary, Mary, and Larry together have $4 +8 +4 = $16.

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3=-1(-4+6)
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inside parenthasees first
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3=-1(2)
3=-2
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3 years ago

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Step-by-step explanation:

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3 years ago

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ValentinkaMS [17]

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Step-by-step explanation:

Divide both sides by 2.02 and you are left with W=-1.8.

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3 years ago

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Solve for m in V = 3x + 2m - y.

jok3333 [9.3K]

Answer:

$\large\boxed{m=\dfrac{V+y-3x}{2}}$

Step-by-step explanation:

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3 years ago

0.3% of a country has a certain disease. The test for the disease has a sensitivity of 92% (i.e., of those we know have the dise

butalik [34]

Answer:

0.95988 (Accuracy of the test )

Step-by-step explanation:

To determine the accuracy of this test we have to list out the given values

Prevalence rate of the disease = 0.3% = 0.003

sensitivity rate of the disease = 92% = 0.92

specificity rate for the test = 96% = 0.96

The accuracy of the test can be found using this equation

Accuracy = sensitivity * prevalence + specificity ( 1 - prevalence )

= 0.92 * 0.003 + 0.96 ( 1 - 0.003 )

= 0.00276 + 0.95712

= 0.95988

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3 years ago