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3 years ago

Can someone do this for me

Mathematics

1 answer:

Natalka [10]3 years ago

4 0

Oh first is b an the second h

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Janet prepared 15 kilograms of dough after working 3 hours. How much dough did Janet prepare if she worked for 4 hours?

riadik2000 [5.3K]

Answer:

20 kilograms

Step-by-step explanation:

15 divided by 3 is 5 so that is 5 kilograms a hour so just add another 5 kilograms and you get 20 kilograms

4 0

3 years ago

Read 2 more answers

A quality-control manager randomly selects 80 bottles of soda that were filled on March 11 to assess the calibration of the fil

lord [1]

Answer:

The sample is the 80 bottles that were randolmy selected on March 11.

Step-by-step explanation:

6 0

3 years ago

Solve using the quadratic formula 2x^2+8x-5=0

Ede4ka [16]

Step-by-step explanation:

Hey there!!

Given,

${x}^{2} + 8x - 5 = 0$

Comparing it with ax^2+bx+c =0 we get,

a= 1, b= 8, c= -5.

Using formula,

$x = \frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a}$

Keep all values,

$x = \frac{ - 8 + - \sqrt{ {8}^{2} - 4 \times 1 \times ( - 5)} }{2 \times 1}$

$x = \frac{ - 8 + - \sqrt{64 + 20} }{2}$

$x = \frac{ - 8 + - \sqrt{84} }{2}$

$x = \frac{ - 8 + - 2 \sqrt{21} }{2}$

Taking negative,

$x = \frac{ - 8 - 2 \sqrt{21} }{2}$

$x = \frac{ - 2(4 + \sqrt{21}) }{2}$

$x = 4 + \sqrt{21}$

Similarly, taking positive,

$x = \frac{ - 8 + 2 \sqrt{21} }{2}$

$x = \frac{ - 2(4 - \sqrt{21} ) }{2}$

$x = 4 - \sqrt{21}$

Therefore, x= (4 + root 21, 4 - root 21).

Hope it helps.....

3 0

3 years ago

What is the GCF of 16;14 ?

puteri [66]

Answer:

Step-by-step explanation:

Factors for 14: 1, 2, 7, and 14. Factors for 16: 1, 2, 4, 8, and 16.

The greatest common factor being 2, as they both have it.

8 0

3 years ago

What numbers go into 130 and 26 (i CAN'T FIGURE IT OUT)

mr_godi [17]

Do a fator tree n it will help if not use a caclualator mess with thebnumbers

6 0

3 years ago