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2 years ago

The difference of two numbers is 3. Their sum is 13. Find the numbers.

Mathematics

2 answers:

Tanzania [10]2 years ago

5 0

Answer:

1 and 13 is the only 2 numbers that can be used

victus00 [196]2 years ago

3 0

Answer:

Lrge number is 8, Small number is 5

Step-by-step explanation:

Lets use two variables, g and t

$G-T=3\\G+T=13\\$

Lets find G and subsitute the equation

$G-T=3\\G=3+T$

SOlve

$(3+T)+T=13\\3+2T=13\\2T=10\\T=5\\G=8$

CHECK:

$8-5=3\\3=3\\8+5=13\\13=13$

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3 years ago

On a linear X temperature scale, water freezes at −115.0°X and boils at 325.0°X. On a linear Y temperature scale, water freezes

belka [17]

Answer:

The current temperature on the X scale is 1150 °X.

Step-by-step explanation:

Let is determine first the ratio of change in X linear temperature scale to change in Y linear temperature scale:

$r = \frac{\Delta T_{X}}{\Delta T_{Y}}$

$r = \frac{325\,^{\circ}X-(-115\,^{\circ}X)}{-25\,^{\circ}Y - (-65.00\,^{\circ}Y)}$

$r = 11\,\frac{^{\circ}X}{^{\circ}Y}$

The difference between current temperature in Y linear scale with respect to freezing point is:

$\Delta T_{Y} = 50\,^{\circ}Y - (-65\,^{\circ}Y)$

$\Delta T_{Y} = 115\,^{\circ}Y$

The change in X linear scale is:

$\Delta T_{X} = r\cdot \Delta T_{Y}$

$\Delta T_{X} = \left(11\,\frac{^{\circ}X}{^{\circ}Y} \right)\cdot (115\,^{\circ}Y)$

$\Delta T_{X} = 1265\,^{\circ}X$

Lastly, the current temperature on the X scale is:

$T_{X} = -115\,^{\circ}X + 1265\,^{\circ}X$

$T_{X} = 1150\,^{\circ}X$

The current temperature on the X scale is 1150 °X.

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3 years ago

Which linear equation has a negative slope? А y = 6 в у= y = – 50 y = 2x + 5

iris [78.8K]

Answer:

y = - 50

Step-by-step explanation:

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3 years ago

Read 2 more answers

Solve the system by substitution. x – 4y = -8 5у – 1 = x Submit Answer

Vikki [24]

Answer:

y = -7 and x = -36

Step-by-step explanation:

x - 4y = -8

5y - 1 = x

→ Substitute 5y - 1 into x - 4y = -8

5y - 1 - 4y = -8

→ Simplify

y - 1 = -8

→ Add 1 to both sides

y = -7

→ Substitute y = -7 into 5y - 1

( 5 × -7 ) - 1 = -36

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3 years ago

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Serggg [28]

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2 years ago