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Bad White [126]
3 years ago
14

Work out the value of x when X – 20 : x + 280 simplifies to 1:4

Mathematics
2 answers:
yaroslaw [1]3 years ago
3 0

Answer:

Solution for your question is X=120

jarptica [38.1K]3 years ago
3 0

Answer:

x = 120

Step-by-step explanation:

Express the ratios as equivalent fractions, that is

\frac{x-20}{x+280} = \frac{1}{4} ( cross- multiply )

4(x - 20) = x + 280

4x - 80 = x + 280 ( subtract x from both sides )

3x - 80 = 280 ( add 80 to both sides )

3x = 360 ( divide both sides by 3 )

x = 120

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Answer:

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Step-by-step explanation:

4 0
3 years ago
the diameter of a piston for an automobile is 3 11/16in with tolerence of 1/64in. find the upper and lower limits of the pistons
padilas [110]

Upper Tolerance

Remark

The 11/16 is the only thing that will be affected. The three won't go up or down when we add 1/64 so we should just work with the 11/16. We need only add 11/16 and 1/64 together to see what the upper range is. Later on we can add 3 into the mix.

Solution

<u>Upper Limit</u>

\dfrac{11}{16} +  \dfrac{1}{64}

Now change the 11/16 into 64. Multiply numerator and denominator or 11/16 by 4

\dfrac{11*4}{16*4} +  \dfrac{1}{64}

\dfrac{11*4}{16*4} +  \dfrac{1}{64} Which results in

\dfrac{44}{64} +  \dfrac{1}{64}

With a final result for the fractions of 45/64

So the upper tolerance = 3 45/64

<u>Lower Tolerance</u>

Just follow the same steps as you did for the upper tolerance except you subtract 1/64 like this.

\dfrac{11}{16} - \dfrac{1}{64}

Your answer should be 3 and 43/64


4 0
3 years ago
What are the zeros of f(x) = x2 + 3x – 10?
Nady [450]
Step One
Factor f(x)
f(x) = (x + 5)(x - 2)

Step Two
The zeros occur when either (x + 5) = 0 or (x - 2) = 0

x + 5 = 0
x = -5

x - 2 =0
x = 2

Step 3
Record the zeros
(-5,0) or (2,0) <<<<<< answer.
3 0
3 years ago
I lowkey need help on number five like I don’t get it . Am I doing something wrong cause I feel like I am ? And which equation w
Tpy6a [65]

43,802 round to tha nearest thounsand

5 0
2 years ago
If y = 7x – 5, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
Setler79 [48]
The third set, (0, -5) (2,9) (-3,-26)
3 0
3 years ago
Read 2 more answers
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