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3 years ago

Pls pls help me I will mark you brainest

Mathematics

1 answer:

Firlakuza [10]3 years ago

4 0

Answer:

Step-by-step explanation:

7 x 10 = 70

4 x 10 = 40

70 + 40 = 110

110 / 2 = 55

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Six grape fruit cost $5.34. How much does one grape fruit cost????

Firlakuza [10]

In order to figure this out, we can set up a proportion and simplify using cross multiplication.

$\frac{units_1}{cost _{1} } =\frac{units_2}{cost _{2} } \\ \\ \frac{6}{5.34} = \frac{1}{x} \\ \\ 6*x=5.34*1 \\ \\ 6x=5.34 \\ \\ x=0.89$

One grapefruit costs 89 cents.

3 0

3 years ago

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Which number is additive inverse of -4 1/4

Nadusha1986 [10]

Answer:

4 1/4

Step-by-step explanation:

the additive inverse is a number that when you add it with the number you already had, makes 0

-2 is the additive inverse of 2

so 4 1/4 is the inverse of -4 1/4

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3 years ago

The circumference of a circle is 60 cm. What is the diameter

Mariana [72]

Using the formulas

C = 2πr

d = 2r

Solving for 'd' (diameter)

d = C

π = 60

π ≈ 19.09859cm

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3 years ago

A triangular prism has a volume of 2673 m3. Each base has an area of 81 m2. What is the height of the prism?

frosja888 [35]

223083 is the answer

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4 years ago

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3. 1/4 added by 2. 5/6 estimated by each sum or difference

maxonik [38]

let's firstly convert the mixed fractions to improper fractions, and then add.

$\bf \stackrel{mixed}{3\frac{1}{4}}\implies \cfrac{3\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{13}{4}}~\hfill \stackrel{mixed}{2\frac{5}{6}}\implies \cfrac{2\cdot 6+5}{6}\implies \stackrel{improper}{\cfrac{17}{6}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{13}{4}+\cfrac{17}{6}\implies \stackrel{\textit{we'll use the LCD of 12}}{\cfrac{(3)13~~+~~(2)17}{12}}\implies \cfrac{39+34}{12}\implies \cfrac{73}{12}\implies 6\frac{1}{12}$

3 0

3 years ago