All categories

3 years ago

7-0.3×>4solve for x

Mathematics

1 answer:

Troyanec [42]3 years ago

4 0

Answer:

x<10

Step-by-step explanation:

Add '-7' to each side of the equation.

7 + -7 + -0.3x = 4 + -7

Combine like terms: 7 + -7 = 0

0 + -0.3x = 4 + -7

-0.3x = 4 + -7

Combine like terms: 4 + -7 = -3

-0.3x = -3

Divide each side by '-0.3'.

x = 10

Simplifying

x = 10

You might be interested in

Please help this is my last question

Serggg [28]

Answer:

The ratio to water to flour is 3:2

The chef will need 2 cups of water? - im not sure

The ratio to water to flour is 3:2.25 - im not sure

The chef will need 1.5 cups of flour.

3 0

3 years ago

Read 2 more answers

The triangular faces of the peaks on a roof are congruent isosceles triangles with vertex angles U and V.

Rina8888 [55]

Answer:

(a). ∠UXV, ∠XVY ; (b). UV = 8 m .

Step-by-step explanation:

3 0

3 years ago

HELP PLEASE

Arturiano [62]

The plane will end up flying 5.02°.

The plan's speed relative to the ground will be 645.91 km/hr.

Solution:

Use the cosine formula,

$a^{2}=b^{2}+c^{2}-2 b c \cos A$

Substitute the given values in the formula,

$\mathrm{R}^{2}=700^{2}+80^{2}-(2 \times 700 \times 80 \times \cos 45^\circ)$

$\mathrm{R}^{2}=490000+6400-(112000 \times\frac{1}{\sqrt{2} } )$

$\mathrm{R}^{2}=496400-79195.95$

$\mathrm{R}^{2}=417204.049$

Taking square root on both sides, we get

R = 645.91 km/hr

This is the grouped speed of the aircraft.

To find θ use sine rule.

$$\frac{\sin C}{c}=\frac{\sin A}{a}$

$$\frac{\sin \theta}{80}=\frac{\sin 45}{645.91}$

Do cross multiplication, we get

$${\sin \theta}}=\frac{\sin 45}{645.91}\times 80$

$${\sin \theta}}=\frac{\frac{1}{\sqrt{2} } }{645.91}\times 80$

sin θ = 0.0875

θ = 5.02°

This is known as the drift angle and is the correction the pilot should apply to remain on course.

The heading is the direction the aircraft's nose is pointing which is

The track is the actual direction over the ground which is θ = 5.02°

An alternative method to this would be to separate each vector into vertical and horizontal components and add.

The resultant can be found using Pythagoras.

7 0

4 years ago

Use substitution to solve the system 4x-5y=-35 y= x=

timama [110]

Is really easy (
y
=
4
x
5
+
7

5 0

3 years ago

How do I decide whether a relation is a function or not ?

uysha [10]

You could set up the relation as a table of ordered pairs. Then, test to see if each element in the domain is matched with exactly one element in the range. If so, you have a function!

4 0

3 years ago

7-0.3×>4solve for x​

7-0.3×>4solve for x