Answer:
45 km/hr
Explanation:
total distance = 90
Increased speed = x+15
90/x - 90/x+15=1/2
90(1/x - 1/x+15)=1/2
90(x+15-x/x^2+15x)=1/2
equation is:
x^2+15x-2700=0
x^2+60x-45x-2700=0
x(x+60)-45(x+60)=0
(x+60)(x-45)=0
x= -60, x=45
reject the negative value = -60
usual speed=45 km/ hr
C. a percentage of income given by all landowners to the church
The answer is A. There were Jim Crow laws that separated the blacks and whites.
Examples: public bathrooms, water fountains, movie theaters, etc.
We will want to explain a gain setting of <u>6</u> on the integrated trailer brake controller during the delivery of 2022 titan xd.
<h3>What is a
brake controller?</h3>
A trailer brake controller is a device that uses hydraulic pressure of the brake system on a vehicle with hydraulic brakes to provide a current to control the electric brakes of a vehicle.
In conclusion, we will want to explain a gain setting of <u>6</u> on the integrated trailer brake controller during the delivery of 2022 titan xd.
Read more about brake controller
<em>brainly.com/question/25980600</em>
Dan begins crying before his mother leaves during the strange situation test. when she returns, he leans toward her but kicks and squirms when she picks him up. he appears to be ambivalent.
Before children reach adulthood,and they develop and display quite a number of characters. Adolescent are very emotional and take note of how they appear(appearance conscious) their looks matter a lot to them and in this stage, the body undergo some major changes like puberty, hormones begins to develop and others.
A six year old child at this stage of growth start to separate from thier parent. They begin to distant themselves and love to do things on their own. A child at four years begins to learn to play with others, are very emotional at one time happy and at another sa and they gradually are leaving attachment to dependence. They are very close to the mother and they undergo language development.
Learn more about adolescent:
brainly.com/question/1956818
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