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3 years ago

What is the solution for the equation 4x - 10 = 2x? Ox=5 Ox=4 Ox=1 Ox= -1.67

Mathematics

1 answer:

Akimi4 [234]3 years ago

7 0

Answer:

Step-by-step explanation:

4x-10=2x - Original equation

4x=2x+10 - Move constant to the right-hand side and change its sign

4x-2x=10 - Move variable to the left-hand side and change its sign

2x=10 - Combine like terms and divide both sides by 2

x=5 - Answer

Hope this helps!!!

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Find the equation for the trend line through the points (0, 11) and (100, 33). Then use it to predict the number of baskets Romy

sleet_krkn [62]

Answer:

28 baskets

Step-by-step explanation:

The equation for a linear trend line is given by:

y = mx + b, where y and x are variables, m is the slope of the line and b is the y intercept (that is value of y when x is zero).

The equation of a line passing through two points $(x_1,y_1)\ and\ (x_2,y_2)$ is:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

y represent the number of baskets made and x represents the time take. Given that the line passes through the points (0, 11) and (100, 33), hence:

$y-11=\frac{33-11}{100-0}(x-0)\\\\y-11=\frac{11}{50}x\\\\y= \frac{11}{50}x+11$

The number of baskets Romy would make after practicing for 80 minutes (x = 80) is:

$y=\frac{11}{50}x+11\\\\y=\frac{11}{50}(80)+11 \\\\y=17.6+11\\\\y=28.6\\\\Therefore\ y\ =\ 28\ baskets$

5 0

3 years ago

HELP W 1 QUESTION PLZZZZZZ

Llana [10]

Answer: "B"

Step-by-step explanation:

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3 years ago

Lawrence sells 40% of the apples on his cart, and are left with 420 apples. How many apples had Lawrence started with?

lutik1710 [3]

Answer:

700 apples

Step-by-step explanation:

Let

x = Total number of apples in the cart

Percentage of apples sold = 40%

Number of apples sold = Percentage of apples sold * Total number of apples in the cart

= 40% * x

= 0.4 * x

= 0.4x

Number of apples left in the cart = 420

Total number of apples in the cart = Number of apples sold + Number of apples left in the cart

x = 0.4x + 420

x - 0.4x = 420

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x = 420/0.6

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4 0

3 years ago

On a map with a scale of 2 cm = 1 km, the

Hunter-Best [27]

Answer:

A. 2.3km

Step-by-step explanation:

Since 2cm = 1km

4.6cm = xkm

xkm = 4.6 x 1 / 2

= 2.3km

5 0

3 years ago

Read 2 more answers

You expect to receive $10,000 at graduation in two years. You plan on investing it at 11% until you have $75,000. How long will

stich3 [128]

Answer:

about 19.31 years

Step-by-step explanation:

$10000( {1.11}^{x} ) = 75000$

${1.11}^{x} = 7.5$

$x ln(1.11) = ln(7.5)$

$x = \frac{ ln(7.5) }{ ln(1.11) } = 19.31$

4 0

2 years ago