How to estimate 289 and 7

Mathematics

1 answer:

Lunna [17]2 years ago

4 0

U can round 289 to 290 and round 7 to 5 or 10

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It costs a man 75 dollars to buy the things that he needs to make hot dogs. The city allows him to sell his hot dog somewhere ne

Greeley [361]

Answer
x = 150
Explanation
Based on the given conditions, formulate:
Rearrange unknown terms to the left side of the equation:
Combine like terms:
Divide both sides of the equation by the coefficient of variable:
Remove the parentheses:
Calculate the product or quotient:
Answer: x = 150

5 0

2 years ago

The amount of money a worker makes varies directly with the hourly rate of pay. Worker A earns $168 for an 8 hour period. Worker

Nataly_w [17]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \textit{money varies directly with hourly rate of pay}\qquad \stackrel{money}{m}=k\stackrel{hour~pay}{h}
\\\\\\
\textit{we also know that }
\begin{cases}
m=168\\
h=8
\end{cases}\implies 168=k8\implies \cfrac{168}{8}=k
\\\\\\
21=k\qquad therefore\qquad \boxed{m=21h}
\\\\\\
\textit{now, when h = 6, what is \underline{m}?}\qquad m=21(6)$

3 0

2 years ago

In the number 906,509 how many times is the 9 in the thousands place in the ones place?

Bingel [31]

A million times greater I guess

6 0

2 years ago

What's the explicit formula HELP

jasenka [17]

Replace N with 6

6(6+1)(2(6)+1) / 6

(6*7*13) / 6

546 / 6 = 91

Answer is C

4 0

2 years ago

Faith and Shawna are shopping for shirts. The available styles are short sleeve (s), tank top (t), and long sleeve (L). they mak

Alexxx [7]

Answer:

The number of ways of selection of 3 items taking 2 at a time in addition to the possible ways in which each girl selects the same style is 9 different ways. Since the list contains 9 different ways in which each of them can select a style, the list is complete.

Step-by-step explanation:

Here we have the number of ways the available styles can be arranged between each girl is given by the number of permutation of 3 items, taking two at a time plus the number of possible selections where both of them select the same style as follows

We note that the formula for permutation is

$_n$ P $_r$ = $\frac{n!}{(n-r)!}$

Therefore ₃P₂ = $\frac{3!}{(3-2)!}$ = 6 different ways

The number of possible selections where both of them select the same style is given by

(T, T), (s, s), (L, L) = 3 different ways

Total number of ways = 6 + 3 = 9 ways

Number of different ways available in the list = 9 ways

Therefore the list is complete

7 0

3 years ago