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3 years ago

Leora had some money in her wallet. She spent $18.62 buying groceries and had $43.55 left. How much money did she

Mathematics

2 answers:

morpeh [17]3 years ago

5 0

Answer:

$62.17

Step-by-step explanation:

18.62 + 43.55 = 62.17

telo118 [61]3 years ago

4 0

Answer:

$62.17

Step-by-step explanation:

we can find out how much she had before she bought groceries by adding the amount she spent to the amount she had left.

43.55 + 18.62 = 62.17

therefore, the answer is $62.17

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Jason has a bar of chocolate he gives his friend 2/5 of his chocolate bar.what percentage of his bar of chocolate does he have l

ddd [48]

Answer:

60%

Step-by-step explanation:

he gave away 2/5 which is 40%. 100%-40% is 60%

8 0

3 years ago

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What is the surface area of a rectangular prism that has i height of 2 length of 5 and width of 13

BaLLatris [955]

Answer:

A=202

Step-by-step explanation:

A=2(wl+hl+hw)

2·(13·5+2·5+2·13)=202

7 0

3 years ago

Given that a=4, b=4 and c=-2 work out b(squared) -2ac

Nimfa-mama [501]

Answer:

Step-by-step explanation:

substitute the given values of a, b and c into the expression:

b² - 2ac = 4² - (2 x 4 x -2)

= 16 - (-16)

= 16 + 16

= 32

3 0

2 years ago

Divide 72 rolls into 2 groups so the ratio is 3 to 5

Lelu [443]

3+5=8
72/8=9
3*9=27
5*9=45

5 0

3 years ago

Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest

Fantom [35]

Answer:

$0.66$

Step-by-step explanation:

GIVEN: Suppose that in a certain county $37\%$ of voters are registered as Democrats, $29\%$ as Republicans, $7\%$ as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be $100x$ .

voters registered as Democrats $=37\%=\frac{37}{100}\times100x$

$=37x$

voters registered as Republicans $=29\%=\frac{29}{100}\times100x$

$=29x$

voters registered as Green party $=7\%=\frac{7}{100}\times100x$

$=7x$

Probability that first call will be to Democrats $P(A)=\frac{\text{total democrats}}{\text{total voters}}$

$=\frac{37x}{100x}=0.37$

Probability that first call will be to Republican $P(B)=\frac{\text{total republicans}}{\text{total voters}}$

$=\frac{29x}{100x}=0.29$

probability that the first call will be to either a Democrat or a Republican

$=P(A)+P(B)$

$=0.37+0.29$

$=0.66$

Hence the probability that the first call will be to either a Democrat or a Republican is $0.66$

6 0

3 years ago