All categories

4 years ago

What is the value of 4x-7 when x=4? 1 9 16 23

Mathematics

2 answers:

harina [27]4 years ago

4 0

Answer:9

Step-by-step explanation:

4x4=16

16-7=9

RSB [31]4 years ago

4 0

4x-7

4(4)-7

mutiply first then do -7

16-7

Answer:

You might be interested in

Jon hikes 13.5 mi at a constant rate of 3 mi/h. How many hours does he hike? 4.0 h 4.5 h 10.0 h 10.5 h

dezoksy [38]

Answer: 4.5

Step-by-step explanation: because, 3x4=12 then you have 1.5 left and 1.5 is half of three so you would have .5 and you then add 4+.5 to get 4.5

4 0

4 years ago

Read 2 more answers

What is the surface area of the rectangular pyramid

Roman55 [17]

Answer: d 99

Step-by-step explanation:

8 0

3 years ago

The quantities xxx and yyy are proportional. xxx yyy 111111 1\dfrac{2}{9}1 9 2 1, start fraction, 2, divided by, 9, end fracti

jolli1 [7]

Question:

The quantities x and y are proportional.

$x\ \ \ \ \ \ \ \ \ \ y \\1\frac{2}{9}\ \ \ \ \ \ \ 2\frac{1}{3}$

Find the constant of proportionality (r)

Answer:

$r = 1\frac{10}{11}$

Step-by-step explanation:

Given

$x\ \ \ \ \ \ \ \ \ \ y \\1\frac{2}{9}\ \ \ \ \ \ \ 2\frac{1}{3}$

Required

Determine the constant of proportionality (r)

Constant of proportionality (r) is calculated as

$y = rx$

When

$y = 2\frac{1}{3}$ $x = 1\frac{2}{9}$

Substitute these values in the given formula

$2\frac{1}{3} = r * 1\frac{2}{9}$

Convert both fractions to improper fractions

$\frac{7}{3} = r * \frac{11}{9}$

Multiply both sides by $\frac{9}{11}$

$\frac{7}{3} * \frac{9}{11}= r * \frac{11}{9} * \frac{9}{11}$

$\frac{7}{3} * \frac{9}{11}= r$

Reorder

$r = \frac{7}{3} * \frac{9}{11}$

$r = \frac{7 * 9}{3 * 11}$

Divide the numerator and denominator by 3

$r = \frac{7 * 3}{11}$

$r = \frac{21}{11}$

Convert to mixed fraction

$r = 1\frac{10}{11}$

<em>Hence, the constant of proportionality is </em> $1\frac{10}{11}$ <em></em>

4 0

3 years ago

Can you guys help me with this one, thanks

Fudgin [204]

Answer:

The answer is 3 3/4

Step-by-step explanation:

First, you have to find a common denominator. 4 and 6 both can first into 12, so 12 is the common denominator. Then you subtract.

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=4%20%2B%20%20%5Csqrt%7B7%7D%20" id="TexFormula1" title="4 + \sqrt{7} " alt="4 + \sqrt{7} " a

ivann1987 [24]

$4 + \sqrt{7}$
Calculate the appropriate values, we get

$= 4 + 2.64575$
$= > 6.64575$

3 0

3 years ago