All categories

4 years ago

Evaluate and show your steps. a. 3.8 × 0.5 + 1.5 × 30

Mathematics

2 answers:

seraphim [82]4 years ago

8 0

Start out with writing it

3.8 x 0.5+ 1.5 x 30

Multiply the numbers: 3.8 x 0.5 = 1.9

=1.9+30 x 1.5

Multiply the numbers: 1.5 x 30= 45

=1.9 +45

Add the numbers: 1.9 + 45=46.9

=46.9

BaLLatris [955]4 years ago

5 0

3.8 * 0.5 + 1.5 *30 then (1.9)+(45) then the answer is 46.9

You might be interested in

1 1/6 + 1 1/4 = ?

SVEN [57.7K]

Answer:

3.4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

3. Two planes are 1620 miles apart and are traveling toward each other. One plane is traveling 120 mph faster than the other pla

GuDViN [60]

Answer:

(9ile)|(ph2our)

Step-by-step explanation:

Sorry is it ok if I converted it into a simplified fraction?

4 0

3 years ago

Find the value of b.

Scrat [10]

Answer:

Step-by-step explanation:

The secant- tangent angle b is half the difference of the measures of the intercepted arcs , then

b = $\frac{1}{2}$ ( 180 - 35) = $\frac{1}{2}$ × 145° = 72.5° → B

3 0

3 years ago

Element X decays radioactively with a half life of 13 minutes. If there are 530 grams of Element X, how long, to the nearest ten

Leona [35]

Answer:

$t \approx 50.4\,min$

Step-by-step explanation:

The time constant of the element X is:

$\tau = \frac{13\,min}{\ln 2}$

$\tau = 18.755\,min$

The decay function has the following form:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

$t = -(13\,min)\cdot \ln \left(\frac{11\,g}{530\,g} \right)$

$t \approx 50.4\,min$

6 0

3 years ago

Equivalent fractions shaded area

spayn [35]

The hexagon's equivalent fractions are 2/6 = 1/3 = 4/12
The dots equivalent fractions are 8/12 = 4/6 = 2/3
The triangles equivalent fractions are 1/2 = 2/4 = 3/6

Hope this helps :)

6 0

4 years ago