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3 years ago

Help ASAP I will give a thanks and 5 stars

Mathematics

1 answer:

natulia [17]3 years ago

8 0

Positive 2, positive 1, zero, negative 1, negative 2

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12 is 90% of what number?<br><br><br> with steps

a_sh-v [17]

Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here 12 is 90% of a number.
So we can say that 90% of That number is 12 .
In this way we can get the the number

<h3><u>Solution</u><u>:</u><u>-</u></h3>

Let,

the number=x

<h3>According to the question ,</h3>

${:}\longrightarrow$ $\sf 90\% \:of \;x=12$

We know 90%=90/100
so add it

${:}\longrightarrow$ $\sf {\dfrac {90}{100}}\times x=12$

${:}\longrightarrow$ $\sf {\dfrac {90x}{100}}=12$

Now use cross multiplication method

${:}\longrightarrow$ $\sf 90x=12\times 100$

${:}\longrightarrow$ $\sf 90x=1200$

Now interchange sides .

${:}\longrightarrow$ $\sf x={\dfrac {1200}{90}}$

${:}\longrightarrow$ $\sf x={\dfrac {200}{15}}$

Answer will come in decimals so we take approximate value.

${:}\longrightarrow$ $\sf x=13.3$

${:}\longrightarrow$ $\sf x=approximately \:13$

$\therefore$ The number is 13.

6 0

3 years ago

8. Write an equation for the graph in slope-

MrMuchimi

Answer:

The answer is D

Step-by-step explanation:

the y is +10

slope is -1/3

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A field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standa

Naya [18.7K]

The 90% confidence interval is (70 - 4, 70 + 4). The margin of error is 4%.

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3 years ago

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

NISA [10]

Last one I think so

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3 years ago

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What is the HCF of 20 36 and 45??

tangare [24]

20=1×2×2×5=1×4×5

36=1×2×2×9=1×4×9

45=1×3×3×5=1×9×5[/tex]

HCF=1

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3 years ago

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